The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).

CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bnc#1164069).

CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service or possibly obtain sensitive information from kernel memory (bnc#1162109).

CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c (bnc#1160966).

CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures (bnc#1161522).

CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service (bnc#1161523).

CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures (bnc#1161518).

CVE-2019-14896: A heap overflow was found in the add_ie_rates() function of the Marvell Wifi Driver (bsc#1157157).

CVE-2019-14897: A stack overflow was found in the lbs_ibss_join_existing() function of the Marvell Wifi Driver (bsc#1157155).

CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).

CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).

CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).

CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition (bnc#1159911).

CVE-2019-19927: Fixed an out-of-bounds read access when mounting a crafted f2fs filesystem image and performing some operations, related to ttm_put_pages in drivers/gpu/drm/ttm/ttm_page_alloc.c (bnc#1160147).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4414-1 advisory.

    It was discovered that the network block device (nbd) implementation in the Linux kernel did not properly     check for error conditions in some situations. An attacker could possibly use this to cause a denial of     service (system crash). (CVE-2019-16089)

    It was discovered that the btrfs file system implementation in the Linux kernel did not properly validate     file system metadata in some situations. An attacker could use this to construct a malicious btrfs image     that, when mounted, could cause a denial of service (system crash). (CVE-2019-19036, CVE-2019-19318,     CVE-2019-19813, CVE-2019-19816)

    It was discovered that the btrfs implementation in the Linux kernel did not properly detect that a block     was marked dirty in some situations. An attacker could use this to specially craft a file system image     that, when unmounted, could cause a denial of service (system crash). (CVE-2019-19377)

    It was discovered that the kernel->user space relay implementation in the Linux kernel did not properly     check return values in some situations. A local attacker could possibly use this to cause a denial of     service (system crash). (CVE-2019-19462)

    Matthew Sheets discovered that the SELinux network label handling implementation in the Linux kernel could     be coerced into de-referencing a NULL pointer. A remote attacker could use this to cause a denial of     service (system crash). (CVE-2020-10711)

    It was discovered that the SCSI generic (sg) driver in the Linux kernel did not properly handle certain     error conditions correctly. A local privileged attacker could use this to cause a denial of service     (system crash). (CVE-2020-12770)

    It was discovered that the USB Gadget device driver in the Linux kernel did not validate arguments passed     from configfs in some situations. A local attacker could possibly use this to cause a denial of service     (system crash) or possibly expose sensitive information. (CVE-2020-13143)

    It was discovered that the efi subsystem in the Linux kernel did not handle memory allocation failures     during early boot in some situations. A local attacker could possibly use this to cause a denial of     service (system crash). (CVE-2019-12380)

    It was discovered that the btrfs file system in the Linux kernel in some error conditions could report     register information to the dmesg buffer. A local attacker could possibly use this to expose sensitive     information. (CVE-2019-19039)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The SUSE Linux Enterprise 12 SP4 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).

CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bnc#1164069).

CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service or possibly obtain sensitive information from kernel memory (bnc#1162109).

CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c (bnc#1160966).

CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures (bnc#1161522).

CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service (bnc#1161523).

CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures (bnc#1161518).

CVE-2019-14896: A heap overflow was found in the add_ie_rates() function of the Marvell Wifi Driver (bsc#1157157).

CVE-2019-14897: A stack overflow was found in the lbs_ibss_join_existing() function of the Marvell Wifi Driver (bsc#1157155).

CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).

CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).

CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).

CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition (bnc#1159911).

CVE-2019-20095: Fixed a memory leak and denial of service in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c, where some error-handling cases did not free allocated hostcmd memory (bnc#1159909).

CVE-2019-20054: Fixed a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c related to put_links (bnc#1159910).

CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service (bnc#1159908).

CVE-2019-19966: Fixed a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that will cause denial of service (bnc#1159841).

CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).

CVE-2019-19319: A setxattr operation, after a mount of a crafted ext4 image, could cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call (bnc#1158021).

CVE-2019-19767: The Linux kernel mishandled ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c (bnc#1159297).

CVE-2019-18808: A memory leak in the ccp_run_sha_cmd() in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption) (bnc#1156259).

CVE-2019-19066: A memory leak in the bfad_im_get_stats() in drivers/scsi/bfa/bfad_attr.c allowed attackers to cause a denial of service (memory consumption) by triggering bfa_port_get_stats() failures (bnc#1157303).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).

CVE-2019-14896: A heap-based buffer overflow vulnerability was found in the Marvell WiFi driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).

CVE-2019-14897: A stack-based buffer overflow was found in the Marvell WiFi driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA (bnc#1157155).

CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).

CVE-2019-18808: A memory leak in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).

CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).

CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).

CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).

CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).

CVE-2019-19319: A slab-out-of-bounds write access could have occured when setxattr was called after mounting of a specially crafted ext4 image (bnc#1158021).

CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).

CVE-2019-19767: There were multiple use-after-free errors in
__ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163 (bnc#1159297).

CVE-2019-19927: A slab-out-of-bounds read access occured when mounting a crafted f2fs filesystem image and performing some operations on it (bnc#1160147).

CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5 (bnc#1159911).

CVE-2019-19966: There was a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that could have caused a denial of service, aka CID-dea37a972655 (bnc#1159841).

CVE-2019-20054: There was a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e (bnc#1159910).

CVE-2019-20095: Several memory leaks were found in drivers/net/wireless/marvell/mwifiex/cfg80211.c, aka CID-003b686ace82 (bnc#1159909).

CVE-2019-20096: There was a memory leak in __feat_register_sp() in net/dccp/feat.c, aka CID-1d3ff0950e2b (bnc#1159908).

CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka CID-7dc40713618c (bnc#1160966).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9 (bnc#1162109).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9 (bnc#1162109).

CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).

CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bnc#1164069).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 15 kernel was updated receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-9383: Fixed an out-of-bounds read due to improper error condition check of FDC index (bsc#1165111).

CVE-2020-8992: Fixed an issue which could have allowed attackers to cause a soft lockup via a crafted journal size (bsc#1164069).

CVE-2020-8834: Fixed a stack corruption which could have lead to kernel panic (bsc#1168276).

CVE-2020-8649: Fixed a use-after-free in the vgacon_invert_region function in drivers/video/console/vgacon.c (bsc#1162931).

CVE-2020-8648: Fixed a use-after-free in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bsc#1162928).

CVE-2020-8647: Fixed a use-after-free in the vc_do_resize function in drivers/tty/vt/vt.c (bsc#1162929).

CVE-2020-8428: Fixed a use-after-free which could have allowed local users to cause a denial of service (bsc#1162109).

CVE-2020-7053: Fixed a use-after-free in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c (bsc#1160966).

CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).

CVE-2020-11609: Fixed a NULL pointer dereference due to improper handling of descriptors (bsc#1168854).

CVE-2020-11608: Fixed a NULL pointer dereferences via a crafted USB (bsc#1168829).

CVE-2020-11494: Fixed an issue which could have allowed attackers to read uninitialized can_frame data (bsc#1168424).

CVE-2020-10942: Fixed a kernel stack corruption via crafted system calls (bsc#1167629).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9458: Fixed a use after free due to a race condition which could have led to privilege escalation of privilege (bsc#1168295).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bsc#1120386).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20810: Fixed a memory leak in due to not calling of snd_card_free (bsc#1172458).

CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which could have caused denial of service (bsc#1159908).

CVE-2019-20095: Fixed an improper error-handling cases that did not free allocated hostcmd memory which was causing memory leak (bsc#1159909).

CVE-2019-20054: Fixed a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links (bsc#1159910).

CVE-2019-19966: Fixed a use-after-free in cpia2_exit() which could have caused denial of service (bsc#1159841).

CVE-2019-19965: Fixed a NULL pointer dereference, due to mishandling of port disconnection during discovery (bsc#1159911).

CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).

CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bsc#1159285).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2019-19447: Fixed a user after free via a crafted ext4 filesystem image (bsc#1158819).

CVE-2019-19319: Fixed a user after free when a large old_size value is used in a memset call (bsc#1158021).

CVE-2019-19318: Fixed a use after free via a crafted btrfs image (bsc#1158026).

CVE-2019-19054: Fixed a memory leak in the cx23888_ir_probe() which could have allowed attackers to cause a denial of service (bsc#1161518).

CVE-2019-19045: Fixed a memory leak in which could have allowed attackers to cause a denial of service (bsc#1161522).

CVE-2019-19036: Fixed a NULL pointer dereference in btrfs_root_node (bsc#1157692).

CVE-2019-16994: Fixed a memory leak which might have caused denial of service (bsc#1161523).

CVE-2019-14897: Fixed a stack overflow in Marvell Wifi Driver (bsc#1157155).

CVE-2019-14896: Fixed a heap overflow in Marvell Wifi Driver (bsc#1157157).

CVE-2019-14615: Fixed an improper control flow in certain data structures which could have led to information disclosure (bsc#1160195).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bnc#1164069).

CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).

CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c. It did not check the length of variable elements in a beacon head, leading to a buffer overflow (bnc#1152107).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9 (bnc#1162109).

CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).

CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).

CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).

CVE-2019-14896: A heap-based buffer overflow vulnerability was found in the Marvell WiFi driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).

CVE-2019-14897: A stack-based buffer overflow was found in the Marvell WiFi driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA (bnc#1157155).

CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka CID-7dc40713618c (bnc#1160966).

CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).

CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).

CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).

CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5 (bnc#1159911).

CVE-2019-19927: A slab-out-of-bounds read access could have been caused when mounting a crafted f2fs filesystem image and performing some operations on it, in drivers/gpu/drm/ttm/ttm_page_alloc.c (bnc#1160147).

CVE-2019-20095: Several memory leaks were found in drivers/net/wireless/marvell/mwifiex/cfg80211.c, aka CID-003b686ace82 (bnc#1159909).

CVE-2019-20054: There was a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e (bnc#1159910).

CVE-2019-20096: There was a memory leak in __feat_register_sp() in net/dccp/feat.c, aka CID-1d3ff0950e2b (bnc#1159908).

CVE-2019-19966: There was a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that could have caused a denial of service, aka CID-dea37a972655 (bnc#1159841).

CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).

CVE-2019-19319: A slab-out-of-bounds write access could have occured when setxattr was called after mounting of a specially crafted ext4 image (bnc#1158021).

CVE-2019-19767: There were multiple use-after-free errors in
__ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163 (bnc#1159297).

CVE-2019-18808: A memory leak in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).

CVE-2019-19066: A memory leak in drivers/scsi/bfa/bfad_attr.c allowed attackers to cause a denial of service (memory consumption), aka CID-0e62395da2bd (bnc#1157303).

CVE-2019-19051: A memory leak in drivers/net/wimax/i2400m/op-rfkill.c allowed attackers to cause a denial of service (memory consumption), aka CID-6f3ef5c25cc7 (bnc#1159024).

CVE-2019-19338: There was an incomplete fix for an issue with Transactional Synchronisation Extensions in the KVM code (bsc#1158954).

CVE-2019-19332: An out-of-bounds memory write issue was found in the way the KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could have used this flaw to crash the system (bnc#1158827).

CVE-2019-19537: There was a race condition bug that could be caused by a malicious USB character device, aka CID-303911cfc5b9. (bsc#1158904).

CVE-2019-19535: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver, aka CID-30a8beeb3042 (bsc#1158903).

CVE-2019-19527: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver, aka CID-9c09b214f30e (bsc#1158900).

CVE-2019-19526: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/nfc/pn533/usb.c driver, aka CID-6af3aa57a098 (bsc#1158893).

CVE-2019-19533: There was an info-leak bug that can be caused by a malicious USB device in the drivers/media/usb/ttusb-dec/ttusb_dec.c driver, aka CID-a10feaf8c464 (bsc#1158834).

CVE-2019-19532: There were multiple out-of-bounds write bugs that can be caused by a malicious USB HID device, aka CID-d9d4b1e46d95 (bsc#1158824).

CVE-2019-19523: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79 (bsc#1158823).

CVE-2019-15213: A use-after-free bug caused by a malicious USB device was found in drivers/media/usb/dvb-usb/dvb-usb-init.c (bsc#1146544).

CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).

CVE-2019-19338: There was an incomplete fix for an issue with Transactional Synchronisation Extensions in the KVM code (bsc#1158954).

CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).

CVE-2019-14896: A heap overflow was found in the add_ie_rates() function of the Marvell Wifi Driver (bsc#1157157).

CVE-2019-14897: A stack overflow was found in the lbs_ibss_join_existing() function of the Marvell Wifi Driver (bsc#1157155).

CVE-2019-15213: A use-after-free bug caused by a malicious USB device was found in drivers/media/usb/dvb-usb/dvb-usb-init.c (bsc#1146544).

CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).

CVE-2019-18808: A memory leak in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).

CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).

CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).

CVE-2019-19051: A memory leak in drivers/net/wimax/i2400m/op-rfkill.c allowed attackers to cause a denial of service (memory consumption), aka CID-6f3ef5c25cc7 (bnc#1159024).

CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).

CVE-2019-19066: A memory leak in drivers/scsi/bfa/bfad_attr.c allowed attackers to cause a denial of service (memory consumption), aka CID-0e62395da2bd (bnc#1157303).

CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).

CVE-2019-19319: A slab-out-of-bounds write access could have occured when setxattr was called after mounting of a specially crafted ext4 image (bnc#1158021).

CVE-2019-19332: An out-of-bounds memory write issue was found in the way the KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could have used this flaw to crash the system (bnc#1158827).

CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).

CVE-2019-19523: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79 (bsc#1158823).

CVE-2019-19524: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/input/ff-memless.c driver, aka CID-fa3a5a1880c9 (bsc#1158413).

CVE-2019-19525: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/net/ieee802154/atusb.c driver, aka CID-7fd25e6fc035 (bsc#1158417).

CVE-2019-19526: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/nfc/pn533/usb.c driver, aka CID-6af3aa57a098 (bsc#1158893).

CVE-2019-19527: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver, aka CID-9c09b214f30e (bsc#1158900).

CVE-2019-19528: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver, aka CID-edc4746f253d (bsc#1158407).

CVE-2019-19529: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/net/can/usb/mcba_usb.c driver, aka CID-4d6636498c41 (bnc#1158381).

CVE-2019-19530: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver, aka CID-c52873e5a1ef (bsc#1158410).

CVE-2019-19531: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/yurex.c driver, aka CID-fc05481b2fca (bsc#1158445).

CVE-2019-19532: There were multiple out-of-bounds write bugs that can be caused by a malicious USB HID device, aka CID-d9d4b1e46d95 (bsc#1158824).

CVE-2019-19533: There was an info-leak bug that can be caused by a malicious USB device in the drivers/media/usb/ttusb-dec/ttusb_dec.c driver, aka CID-a10feaf8c464 (bsc#1158834).

CVE-2019-19534: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_core.c driver, aka CID-f7a1337f0d29 (bsc#1158398).

CVE-2019-19535: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver, aka CID-30a8beeb3042 (bsc#1158903).

CVE-2019-19536: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_pro.c driver, aka CID-ead16e53c2f0 (bsc#1158394).

CVE-2019-19537: There was a race condition bug that can be caused by a malicious USB device in the USB character device driver layer, aka CID-303911cfc5b9 (bsc#1158904).

CVE-2019-19543: There was a use-after-free in serial_ir_init_module() in drivers/media/rc/serial_ir.c (bnc#1158427).

CVE-2019-19767: There were multiple use-after-free errors in
__ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163 (bnc#1159297).

CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5 (bnc#1159911).

CVE-2019-19966: There was a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that could have caused a denial of service, aka CID-dea37a972655 (bnc#1159841).

CVE-2019-20054: There was a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e (bnc#1159910).

CVE-2019-20095: Several memory leaks were found in drivers/net/wireless/marvell/mwifiex/cfg80211.c, aka CID-003b686ace82 (bnc#1159909).

CVE-2019-20096: There was a memory leak in __feat_register_sp() in net/dccp/feat.c, aka CID-1d3ff0950e2b (bnc#1159908).

CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka CID-7dc40713618c (bnc#1160966).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9 (bnc#1162109).

CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).

CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bnc#1164069).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 15 SP1 real-time kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).

CVE-2019-14895: A heap-based buffer overflow was discovered in the Marvell WiFi driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service or possibly execute arbitrary code (bnc#1157158).

CVE-2019-14896: A heap overflow was found in the add_ie_rates() function of the Marvell Wifi Driver (bsc#1157157).

CVE-2019-14897: A stack overflow was found in the lbs_ibss_join_existing() function of the Marvell Wifi Driver (bsc#1157155).

CVE-2019-14901: A heap overflow flaw was found in the Marvell WiFi driver. The vulnerability allowed a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code (bnc#1157042).

CVE-2019-15213: A use-after-free bug caused by a malicious USB device was found in drivers/media/usb/dvb-usb/dvb-usb-init.c (bsc#1146544).

CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c. The check for the length of variable elements in a beacon head was insufficient, leading to a buffer overflow (bnc#1152107).

CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).

CVE-2019-18660: An information disclosure bug occured because the Spectre-RSB mitigation were not in place for all applicable CPUs, aka CID-39e72bf96f58 (bnc#1157038).

CVE-2019-18683: Multiple race conditions were discovered in drivers/media/platform/vivid. It was exploitable for privilege escalation if local users had access to /dev/video0, but only if the driver happened to be loaded. At least one of these race conditions led to a use-after-free (bnc#1155897).

CVE-2019-18808: A memory leak in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).

CVE-2019-18809: A memory leak in drivers/media/usb/dvb-usb/af9005.c allowed attackers to cause a denial of service (memory consumption), aka CID-2289adbfa559 (bnc#1156258).

CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).

CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).

CVE-2019-19046: There was a memory leak in __ipmi_bmc_register (bsc#1157304).

CVE-2019-19049: There was an unlikely memory leak in unittest_data_add (bsc#1157173).

CVE-2019-19051: A memory leak in drivers/net/wimax/i2400m/op-rfkill.c allowed attackers to cause a denial of service (memory consumption), aka CID-6f3ef5c25cc7 (bnc#1159024).

CVE-2019-19052: A memory leak in drivers/net/can/usb/gs_usb.c allowed attackers to cause a denial of service (memory consumption), aka CID-fb5be6a7b486 (bnc#1157324).

CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).

CVE-2019-19056: A memory leak in drivers/net/wireless/marvell/mwifiex/pcie.c allowed attackers to cause a denial of service (memory consumption), aka CID-db8fd2cde932 (bnc#1157197).

CVE-2019-19057: Two memory leaks in drivers/net/wireless/marvell/mwifiex/pcie.c allowed attackers to cause a denial of service (memory consumption), aka CID-d10dcb615c8e (bnc#1157193 bsc#1157197).

CVE-2019-19058: A memory leak in drivers/net/wireless/intel/iwlwifi/fw/dbg.c allowed attackers to cause a denial of service (memory consumption), aka CID-b4b814fec1a5 (bnc#1157145).

CVE-2019-19060: A memory leak in drivers/iio/imu/adis_buffer.c allowed attackers to cause a denial of service (memory consumption), aka CID-ab612b1daf41 (bnc#1157178).

CVE-2019-19062: A memory leak in crypto/crypto_user_base.c allowed attackers to cause a denial of service (memory consumption), aka CID-ffdde5932042 (bnc#1157333).

CVE-2019-19063: Two memory leaks in drivers/net/wireless/realtek/rtlwifi/usb.c allowed attackers to cause a denial of service (memory consumption), aka CID-3f9361695113 (bnc#1157298).

CVE-2019-19065: A memory leak in drivers/infiniband/hw/hfi1/sdma.c allowed attackers to cause a denial of service (memory consumption), aka CID-34b3be18a04e (bnc#1157191).

CVE-2019-19066: A memory leak in drivers/scsi/bfa/bfad_attr.c allowed attackers to cause a denial of service (memory consumption), aka CID-0e62395da2bd (bnc#1157303).

CVE-2019-19067: There were four unlikely memory leaks in the acp_hw_init() function in drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c (bnc#1157180).

CVE-2019-19068: A memory leak in drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c allowed attackers to cause a denial of service (memory consumption), aka CID-a2cdd07488e6 (bnc#1157307).

CVE-2019-19073: Memory leaks in drivers/net/wireless/ath/ath9k/htc_hst.c allowed attackers to cause a denial of service (memory consumption), aka CID-853acf7caf10 (bnc#1157070).

CVE-2019-19074: A memory leak in drivers/net/wireless/ath/ath9k/wmi.c allowed attackers to cause a denial of service (memory consumption), aka CID-728c1e2a05e4 (bnc#1157143).

CVE-2019-19075: A memory leak in drivers/net/ieee802154/ca8210.c allowed attackers to cause a denial of service (memory consumption) by triggering ca8210_get_platform_data() failures, aka CID-6402939ec86e (bnc#1157162).

CVE-2019-19077: A memory leak in drivers/infiniband/hw/bnxt_re/ib_verbs.c allowed attackers to cause a denial of service (memory consumption), aka CID-4a9d46a9fe14 (bnc#1157171).

CVE-2019-19078: A memory leak in drivers/net/wireless/ath/ath10k/usb.c allowed attackers to cause a denial of service (memory consumption) by triggering usb_submit_urb() failures, aka CID-b8d17e7d93d2 (bnc#1157032).

CVE-2019-19080: Four memory leaks in drivers/net/ethernet/netronome/nfp/flower/main.c allowed attackers to cause a denial of service (memory consumption), aka CID-8572cea1461a (bnc#1157044).

CVE-2019-19081: A memory leak in drivers/net/ethernet/netronome/nfp/flower/main.c allowed attackers to cause a denial of service (memory consumption), aka CID-8ce39eb5a67a (bnc#1157045).

CVE-2019-19082: Memory leaks were found in the *create_resource_pool() functions under drivers/gpu/drm/amd/display/dc, aka CID-104c307147ad (bnc#1157046).

CVE-2019-19083: Memory leaks were found in the *clock_source_create() functions under drivers/gpu/drm/amd/display/dc, aka CID-055e547478a1 (bnc#1157049).

CVE-2019-19227: In the AppleTalk subsystem there was a potential NULL pointer dereference because register_snap_client may return NULL. This could have led to denial of service, aka CID-9804501fa122 (bnc#1157678).

CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).

CVE-2019-19319: A slab-out-of-bounds write access could have occured when setxattr was called after mounting of a specially crafted ext4 image (bnc#1158021).

CVE-2019-19332: An out-of-bounds memory write issue was found in the way the KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could have used this flaw to crash the system (bnc#1158827).

CVE-2019-19338: There was an incomplete fix for an issue with Transactional Synchronisation Extensions in the KVM code (bsc#1158954).

CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).

CVE-2019-19523: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79 (bsc#1158823).

CVE-2019-19524: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/input/ff-memless.c driver, aka CID-fa3a5a1880c9 (bsc#1158413).

CVE-2019-19525: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/net/ieee802154/atusb.c driver, aka CID-7fd25e6fc035 (bsc#1158417).

CVE-2019-19526: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/nfc/pn533/usb.c driver, aka CID-6af3aa57a098 (bsc#1158893).

CVE-2019-19527: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver, aka CID-9c09b214f30e (bsc#1158900).

CVE-2019-19528: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver, aka CID-edc4746f253d (bsc#1158407).

CVE-2019-19529: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/net/can/usb/mcba_usb.c driver, aka CID-4d6636498c41 (bnc#1158381).

CVE-2019-19530: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver, aka CID-c52873e5a1ef (bsc#1158410).

CVE-2019-19531: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/yurex.c driver, aka CID-fc05481b2fca (bsc#1158445).

CVE-2019-19532: There were multiple out-of-bounds write bugs that can be caused by a malicious USB HID device, aka CID-d9d4b1e46d95 (bsc#1158824).

CVE-2019-19533: There was an info-leak bug that can be caused by a malicious USB device in the drivers/media/usb/ttusb-dec/ttusb_dec.c driver, aka CID-a10feaf8c464 (bsc#1158834).

CVE-2019-19534: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_core.c driver, aka CID-f7a1337f0d29 (bsc#1158398).

CVE-2019-19535: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver, aka CID-30a8beeb3042 (bsc#1158903).

CVE-2019-19536: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_pro.c driver, aka CID-ead16e53c2f0 (bsc#1158394).

CVE-2019-19537: There was a race condition bug that can be caused by a malicious USB device in the USB character device driver layer, aka CID-303911cfc5b9 (bsc#1158904).

CVE-2019-19543: There was a use-after-free in serial_ir_init_module() in drivers/media/rc/serial_ir.c (bnc#1158427).

CVE-2019-19767: There were multiple use-after-free errors in
__ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163 (bnc#1159297).

CVE-2019-19927: A slab-out-of-bounds read access occured when mounting a crafted f2fs filesystem image and performing some operations on it (bnc#1160147).

CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5 (bnc#1159911).

CVE-2019-19966: There was a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that could have caused a denial of service, aka CID-dea37a972655 (bnc#1159841).

CVE-2019-20054: There was a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e (bnc#1159910).

CVE-2019-20095: Several memory leaks were found in drivers/net/wireless/marvell/mwifiex/cfg80211.c, aka CID-003b686ace82 (bnc#1159909).

CVE-2019-20096: There was a memory leak in __feat_register_sp() in net/dccp/feat.c, aka CID-1d3ff0950e2b (bnc#1159908).

CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka CID-7dc40713618c (bnc#1160966).

CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9 (bnc#1162109).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

CVE-2019-19318, CVE-2019-19813, CVE-2019-19816

'Team bobfuzzer' reported bugs in Btrfs that could lead to a use-after-free or heap buffer overflow, and could be triggered by crafted filesystem images. A user permitted to mount and access arbitrary filesystems could use these to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-27815

A flaw was reported in the JFS filesystem code allowing a local attacker with the ability to set extended attributes to cause a denial of service.

CVE-2020-27825

Adam 'pi3' Zabrocki reported a use-after-free flaw in the ftrace ring buffer resizing logic due to a race condition, which could result in denial of service or information leak.

CVE-2020-28374

David Disseldorp discovered that the LIO SCSI target implementation performed insufficient checking in certain XCOPY requests. An attacker with access to a LUN and knowledge of Unit Serial Number assignments can take advantage of this flaw to read and write to any LIO backstore, regardless of the SCSI transport settings.

CVE-2020-29568 (XSA-349)

Michael Kurth and Pawel Wieczorkiewicz reported that frontends can trigger OOM in backends by updating a watched path.

CVE-2020-29569 (XSA-350)

Olivier Benjamin and Pawel Wieczorkiewicz reported a use-after-free flaw which can be triggered by a block frontend in Linux blkback. A misbehaving guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend.

CVE-2020-29660

Jann Horn reported a locking inconsistency issue in the tty subsystem which may allow a local attacker to mount a read-after-free attack against TIOCGSID.

CVE-2020-29661

Jann Horn reported a locking issue in the tty subsystem which can result in a use-after-free. A local attacker can take advantage of this flaw for memory corruption or privilege escalation.

CVE-2020-36158

A buffer overflow flaw was discovered in the mwifiex WiFi driver which could result in denial of service or the execution of arbitrary code via a long SSID value.

CVE-2021-3178

&#x5434;&#x5F02; reported an information leak in the NFSv3 server.
When only a subdirectory of a filesystem volume is exported, an NFS client listing the exported directory would obtain a file handle to the parent directory, allowing it to access files that were not meant to be exported.

Even after this update, it is still possible for NFSv3 clients to guess valid file handles and access files outside an exported subdirectory, unless the 'subtree_check' export option is enabled. It is recommended that you do not use that option but only export whole filesystem volumes.

CVE-2021-3347

It was discovered that PI futexes have a kernel stack use-after-free during fault handling. An unprivileged user could use this flaw to crash the kernel (resulting in denial of service) or for privilege escalation.

CVE-2021-26930 (XSA-365)

Olivier Benjamin, Norbert Manthey, Martin Mazein, and Jan H.
Sch&ouml;nherr discovered that the Xen block backend driver (xen-blkback) did not handle grant mapping errors correctly. A malicious guest could exploit this bug to cause a denial of service (crash), or possibly an information leak or privilege escalation, within the domain running the backend, which is typically dom0.

CVE-2021-26931 (XSA-362), CVE-2021-26932 (XSA-361), CVE-2021-28038 (XSA-367)

Jan Beulich discovered that the Xen support code and various Xen backend drivers did not handle grant mapping errors correctly. A malicious guest could exploit these bugs to cause a denial of service (crash) within the domain running the backend, which is typically dom0.

CVE-2021-27363

Adam Nichols reported that the iSCSI initiator subsystem did not properly restrict access to transport handle attributes in sysfs. On a system acting as an iSCSI initiator, this is an information leak to local users and makes it easier to exploit CVE-2021-27364.

CVE-2021-27364

Adam Nichols reported that the iSCSI initiator subsystem did not properly restrict access to its netlink management interface. On a system acting as an iSCSI initiator, a local user could use these to cause a denial of service (disconnection of storage) or possibly for privilege escalation.

CVE-2021-27365

Adam Nichols reported that the iSCSI initiator subsystem did not correctly limit the lengths of parameters or 'passthrough PDUs' sent through its netlink management interface. On a system acting as an iSCSI initiator, a local user could use these to leak the contents of kernel memory, to cause a denial of service (kernel memory corruption or crash), and probably for privilege escalation.

For Debian 9 stretch, these problems have been fixed in version 4.9.258-1.

We recommend that you upgrade your linux packages.

For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Published	Updated	Severity
134559	openSUSE Security Update : the Linux Kernel (openSUSE-2020-336)	Nessus	SuSE Local Security Checks	3/13/2020	3/22/2024	critical
134287	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0558-1)	Nessus	SuSE Local Security Checks	3/6/2020	3/25/2024	critical
138139	Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4414-1)	Nessus	Ubuntu Local Security Checks	7/6/2020	8/27/2024	high
134288	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0559-1)	Nessus	SuSE Local Security Checks	3/6/2020	3/25/2024	critical
134292	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0580-1)	Nessus	SuSE Local Security Checks	3/6/2020	3/25/2024	critical
138272	SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1)	Nessus	SuSE Local Security Checks	7/9/2020	3/1/2024	critical
134289	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:0560-1)	Nessus	SuSE Local Security Checks	3/6/2020	3/25/2024	critical
134293	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:0584-1)	Nessus	SuSE Local Security Checks	3/6/2020	3/25/2024	critical
134363	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:0613-1)	Nessus	SuSE Local Security Checks	3/10/2020	3/22/2024	critical
147532	Debian DLA-2586-1 : linux security update	Nessus	Debian Local Security Checks	3/10/2021	1/16/2024	high

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