The SUSE Linux Enterprise 12 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2018-12207: Untrusted virtual machines on Intel CPUs could exploit a race condition in the Instruction Fetch Unit of the Intel CPU to cause a Machine Exception during Page Size Change, causing the CPU core to be non-functional.

The Linux Kernel KVM hypervisor was adjusted to avoid page size changes in executable pages by splitting / merging huge pages into small pages as needed. More information can be found on https://www.suse.com/support/kb/doc/?id=7023735 CVE-2019-11135:
Aborting an asynchronous TSX operation on Intel CPUs with Transactional Memory support could be used to facilitate sidechannel information leaks out of microarchitectural buffers, similar to the previously described 'Microarchitectural Data Sampling' attack.

The Linux kernel was supplemented with the option to disable TSX operation altogether (requiring CPU Microcode updates on older systems) and better flushing of microarchitectural buffers (VERW).

The set of options available is described in our TID at https://www.suse.com/support/kb/doc/?id=7024251 CVE-2019-16233:
drivers/scsi/qla2xxx/qla_os.c did not check the alloc_workqueue return value, leading to a NULL pointer dereference. (bsc#1150457).

CVE-2019-10220: Added sanity checks on the pathnames passed to the user space. (bsc#1144903).

CVE-2019-16232: Fix a potential NULL pointer dereference in the Marwell libertas driver (bsc#1150465).

CVE-2019-16234: iwlwifi pcie driver did not check the alloc_workqueue return value, leading to a NULL pointer dereference. (bsc#1150452).

CVE-2019-17055: The AF_ISDN network module in the Linux kernel did not enforce CAP_NET_RAW, which meant that unprivileged users could create a raw socket (bnc#1152782).

CVE-2019-17056: The AF_NFC network module did not enforce CAP_NET_RAW, which meant that unprivileged users could create a raw socket (bsc#1152788).

CVE-2019-16413: The 9p filesystem did not protect i_size_write() properly, which caused an i_size_read() infinite loop and denial of service on SMP systems (bnc#1151347).

CVE-2019-15902: A backporting issue was discovered that re-introduced the Spectre vulnerability it had aimed to eliminate. This occurred because the backport process depends on cherry picking specific commits, and because two (correctly ordered) code lines were swapped (bnc#1149376).

CVE-2019-15291: Fixed a NULL pointer dereference issue that could be caused by a malicious USB device (bnc#11465).

CVE-2019-15807: Fixed a memory leak in the SCSI module that could be abused to cause denial of service (bnc#1148938).

CVE-2019-14821: An out-of-bounds access issue was fixed in the kernel's KVM hypervisor. An unprivileged host user or process with access to '/dev/kvm' device could use this flaw to crash the host kernel, resulting in a denial of service or potentially escalating privileges on the system (bnc#1151350).

CVE-2019-15505: An out-of-bounds issue had been fixed that could be caused by crafted USB device traffic (bnc#1147122).

CVE-2017-18595: A double free in allocate_trace_buffer was fixed (bnc#1149555).

CVE-2019-14835: A buffer overflow flaw was found in the kernel's vhost functionality that translates virtqueue buffers to IOVs. A privileged guest user able to pass descriptors with invalid length to the host could use this flaw to increase their privileges on the host (bnc#1150112).

CVE-2019-15216: A NULL pointer dereference was fixed that could be malicious USB device (bnc#1146361).

CVE-2019-9456: An out-of-bounds write in the USB monitor driver has been fixed. This issue could lead to local escalation of privilege with System execution privileges needed. (bnc#1150025).

CVE-2019-15926: An out-of-bounds access was fixed in the drivers/net/wireless/ath/ath6kl module. (bnc#1149527).

CVE-2019-15927: An out-of-bounds access was fixed in the sound/usb/mixer module (bnc#1149522).

CVE-2019-15219: A NULL pointer dereference was fixed that could be abused by a malicious USB device (bnc#1146524).

CVE-2019-15220: A use-after-free issue was fixed that could be caused by a malicious USB device (bnc#1146526).

CVE-2019-15221: A NULL pointer dereference was fixed that could be caused by a malicious USB device (bnc#1146529).

CVE-2019-14814: A heap-based buffer overflow was fixed in the marvell wifi chip driver. That issue allowed local users to cause a denial of service (system crash) or possibly execute arbitrary code (bnc#1146512).

CVE-2019-14815: A missing length check while parsing WMM IEs was fixed (bsc#1146512, bsc#1146514, bsc#1146516).

CVE-2019-14816: A heap-based buffer overflow in the marvell wifi chip driver was fixed. Local users would have abused this issue to cause a denial of service (system crash) or possibly execute arbitrary code (bnc#1146516).

CVE-2017-18509: An issue in net/ipv6 as fixed. By setting a specific socket option, an attacker could control a pointer in kernel land and cause an inet_csk_listen_stop general protection fault, or potentially execute arbitrary code under certain circumstances. The issue can be triggered as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN capability) or after namespace unsharing. (bnc#1145477)

CVE-2019-9506: The Bluetooth BR/EDR specification used to permit sufficiently low encryption key length and did not prevent an attacker from influencing the key length negotiation. This allowed practical brute-force attacks (aka 'KNOB') that could decrypt traffic and inject arbitrary ciphertext without the victim noticing (bnc#1137865).

CVE-2019-15098: A NULL pointer dereference in drivers/net/wireless/ath was fixed (bnc#1146378).

CVE-2019-15290: A NULL pointer dereference in ath6kl_usb_alloc_urb_from_pipe was fixed (bsc#1146378).

CVE-2019-15212: A double-free issue was fixed in drivers/usb driver (bnc#1146391).

CVE-2016-10906: A use-after-free issue was fixed in drivers/net/ethernet/arc (bnc#1146584).

CVE-2019-15217: A a NULL pointer dereference issue caused by a malicious USB device was fixed in the drivers/media/usb/zr364xx driver (bnc#1146519).

CVE-2019-15218: A NULL pointer dereference caused by a malicious USB device was fixed in the drivers/media/usb/siano driver (bnc#1146413).

CVE-2019-15215: A use-after-free issue caused by a malicious USB device was fixed in the drivers/media/usb/cpia2 driver (bnc#1146425).

CVE-2018-20976: A use-after-free issue was fixed in the fs/xfs driver (bnc#1146285).

CVE-2017-18551: An out-of-bounds write was fixed in the drivers/i2c driver (bnc#1146163).

CVE-2019-10207: Add checks for missing tty operations to prevent unprivileged user to execute 0x0 address (bsc#1142857 bsc#1123959)

CVE-2019-15118: ALSA: usb-audio: Fix a stack-based buffer overflow bug in check_input_term leading to kernel stack exhaustion (bsc#1145922).

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 OracleVM system is missing necessary patches to address critical security updates :

  - KVM: x86: Remove spurious semicolon (Joao Martins)     [Orabug: 31413782]

  - genirq: Use rcu in kstat_irqs_usr (Eric Dumazet)

  - genirq: Make sparse_irq_lock protect what it should     protect (Thomas Gleixner) [Orabug: 30953676]

  - genirq: Free irq_desc with rcu (Thomas Gleixner)     [Orabug: 30953676]

  - qla2xxx: Update driver version to 9.00.00.00.42.0-k1-v2     (Arun Easi) [Orabug: 30372266]

  - qla2xxx: Fix device discovery when FCP2 device is lost.
    (Arun Easi) [Orabug: 30372266]

  - brcmfmac: add subtype check for event handling in data     path (John Donnelly) [Orabug: 30776354] (CVE-2019-9503)

  - percpu-refcount: fix reference leak during percpu-atomic     transition (Douglas Miller) [Orabug: 30867060]

  - blk-mq: Allow timeouts to run while queue is freezing     (Gabriel Krisman Bertazi) [Orabug: 30867060]

  - fs/dcache.c: fix spin lockup issue on nlru->lock     (Junxiao Bi) [Orabug: 30953290]

  - jbd2: disable CONFIG_JBD2_DEBUG (Junxiao Bi) [Orabug:
    31234664]

  - mwifiex: pcie: Fix memory leak in     mwifiex_pcie_alloc_cmdrsp_buf (Navid Emamdoost) [Orabug:
    31246302] (CVE-2019-19056)

  - drm/vmwgfx: limit the number of mip levels in     vmw_gb_surface_define_ioctl (Vladis Dronov) [Orabug:
    31262557] (CVE-2017-7346)

  - i40e: Increment the driver version for FW API update     (Jack Vogel) [Orabug: 31051191] (CVE-2019-0140)     (CVE-2019-0139) (CVE-2019-0144)

  - i40e: Update FW API version to 1.9 (Piotr Azarewicz)     [Orabug: 31051191] (CVE-2019-0140) (CVE-2019-0139)     (CVE-2019-0144)

  - i40e: Changed maximum supported FW API version to 1.8     (Adam Ludkiewicz) [Orabug: 31051191] (CVE-2019-0140)     (CVE-2019-0139) (CVE-2019-0144)

  - i40e: Stop dropping 802.1ad tags - eth proto 0x88a8     (Scott Peterson) [Orabug: 31051191] (CVE-2019-0140)     (CVE-2019-0139) (CVE-2019-0144)

  - i40e: fix reading LLDP configuration (Mariusz Stachura)     [Orabug: 31051191] (CVE-2019-0140) (CVE-2019-0139)     (CVE-2019-0144)

  - i40e: Add capability flag for stopping FW LLDP     (Krzysztof Galazka) [Orabug: 31051191] (CVE-2019-0140)     (CVE-2019-0139) (CVE-2019-0144)

  - i40e: refactor FW version checking (Mitch Williams)     [Orabug: 31051191] (CVE-2019-0140) (CVE-2019-0139)     (CVE-2019-0144)

  - i40e: shutdown all IRQs and disable MSI-X when suspended     (Jacob Keller) [Orabug: 31051191] (CVE-2019-0140)     (CVE-2019-0139) (CVE-2019-0144)

  - i40e: prevent service task from running while we're     suspended (Jacob Keller) [Orabug: 31051191]     (CVE-2019-0140) (CVE-2019-0139) (CVE-2019-0144)

  - i40e: don't clear suspended state until we finish     resuming (Jacob Keller) [Orabug: 31051191]     (CVE-2019-0140) (CVE-2019-0139) (CVE-2019-0144)

  - i40e: use newer generic PM support instead of legacy PM     callbacks (Jacob Keller) [Orabug: 31051191]     (CVE-2019-0140) (CVE-2019-0139) (CVE-2019-0144)

  - i40e: use separate state bit for miscellaneous IRQ setup     (Jacob Keller) [Orabug: 31051191] (CVE-2019-0140)     (CVE-2019-0139) (CVE-2019-0144)

  - i40e: fix for flow director counters not wrapping as     expected (Mariusz Stachura) [Orabug: 31051191]     (CVE-2019-0140) (CVE-2019-0139) (CVE-2019-0144)

  - i40e: relax warning message in case of version mismatch     (Mariusz Stachura) [Orabug: 31051191] (CVE-2019-0140)     (CVE-2019-0139) (CVE-2019-0144)

  - i40e: simplify member variable accesses (Sudheer     Mogilappagari) [Orabug: 31051191] (CVE-2019-0140)     (CVE-2019-0139) (CVE-2019-0144)

  - i40e: Fix link down message when interface is brought up     (Sudheer Mogilappagari) [Orabug: 31051191]     (CVE-2019-0140) (CVE-2019-0139) (CVE-2019-0144)

  - i40e: Fix unqualified module message while bringing link     up (Sudheer Mogilappagari) [Orabug: 31051191]     (CVE-2019-0140) (CVE-2019-0139) (CVE-2019-0144)

  - HID: Fix assumption that devices have inputs (Alan     Stern) [Orabug: 31208622] (CVE-2019-19532)

  - qla2xxx: DBG: disable 3D mailbox. (Quinn Tran) [Orabug:
    30890687]

  - scsi: qla2xxx: Fix mtcp dump collection failure (Quinn     Tran) [Orabug: 30890687]

  - scsi: qla2xxx: Add Serdes support for ISP27XX (Joe     Carnuccio) [Orabug: 30890687]

  - vgacon: Fix a UAF in vgacon_invert_region (Zhang Xiaoxu)     [Orabug: 31143947] (CVE-2020-8649) (CVE-2020-8647)     (CVE-2020-8647) (CVE-2020-8649) (CVE-2020-8649)     (CVE-2020-8647)

  - HID: hiddev: do cleanup in failure of opening a device     (Hillf Danton) [Orabug: 31206360] (CVE-2019-19527)

  - HID: hiddev: avoid opening a disconnected device (Hillf     Danton) [Orabug: 31206360] (CVE-2019-19527)

  - USB: adutux: fix use-after-free on disconnect (Johan     Hovold) [Orabug: 31233769] (CVE-2019-19523)

  - ipv4: implement support for NOPREFIXROUTE ifa flag for     ipv4 address (Paolo Abeni) [Orabug: 30292825]

  - vt: selection, push sel_lock up (Jiri Slaby) [Orabug:
    30923298] (CVE-2020-8648)

  - vt: selection, push console lock down (Jiri Slaby)     [Orabug: 30923298] (CVE-2020-8648)

  - vt: selection, close sel_buffer race (Jiri Slaby)     [Orabug: 30923298] (CVE-2020-8648) (CVE-2020-8648)

  - xfs: stop searching for free slots in an inode chunk     when there are none (Carlos Maiolino) [Orabug: 31030659]

  - xfs: fix up xfs_swap_extent_forks inline extent handling     (Eric Sandeen) [Orabug: 31032831]

  - xfs: validate sb_logsunit is a multiple of the fs     blocksize (Darrick J. Wong) [Orabug: 31034071]

  - mwifiex: Fix three heap overflow at parsing element in     cfg80211_ap_settings (Wen Huang) [Orabug: 31104481]     (CVE-2019-14814) (CVE-2019-14815) (CVE-2019-14816)     (CVE-2019-14814) (CVE-2019-14815) (CVE-2019-14816)

  - rds: fix an infoleak in rds_inc_info_copy (Kangjie Lu)     [Orabug: 30770962] (CVE-2016-5244)

  - xfs: do async inactivation only when fs freezed (Junxiao     Bi) [Orabug: 30944736]

  - xfs: fix deadlock between shrinker and fs freeze     (Junxiao Bi) [Orabug: 30944736]

  - xfs: increase the default parallelism levels of pwork     clients (Junxiao Bi) [Orabug: 30944736]

  - xfs: decide if inode needs inactivation (Junxiao Bi)     [Orabug: 30944736]

  - xfs: refactor the predicate part of xfs_free_eofblocks     (Junxiao Bi) [Orabug: 30944736]

  - floppy: check FDC index for errors before assigning it     (Linus Torvalds) [Orabug: 31067516] (CVE-2020-9383)

  - KVM: x86: clear stale x86_emulate_ctxt->intercept value     (Vitaly Kuznetsov) [Orabug: 31118691]

  - slcan: Don't transmit uninitialized stack data in     padding (Richard Palethorpe) [Orabug: 31136753]     (CVE-2020-11494)

  - rds: transport module should be auto loaded when     transport is set (Rao Shoaib) [Orabug: 31031928]

  - KVM: X86: Fix NULL deref in vcpu_scan_ioapic (Wanpeng     Li) [Orabug: 31078882]

  - vhost: Check docket sk_family instead of call getname     (Eugenio P&eacute rez) [Orabug: 31085993]     (CVE-2020-10942)

  - Revert 'oled: give panic handler chance to run before     kexec' (Wengang Wang) [Orabug: 31098797]

  - kernel: cpu.c: fix return in void function     cpu_smt_disable (Mihai Carabas) [Orabug: 31047871]

  - net: qlogic: Fix memory leak in ql_alloc_large_buffers     (Navid Emamdoost) [Orabug: 31055327] (CVE-2019-18806)

  - swiotlb: clean up reporting (Kees Cook) [Orabug:
    31085017] (CVE-2018-5953)

  - KVM: x86: Expose more Intel AVX512 feature to guest     (Luwei Kang) [Orabug: 31085086]

  - x86/cpufeature: Enable new AVX-512 features (Fenghua Yu)     [Orabug: 31085086]

  - xenbus: req->err should be updated before req->state     (Dongli Zhang) [Orabug: 30705030]

  - xenbus: req->body should be updated before req->state     (Dongli Zhang) [Orabug: 30705030]

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:0204 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * hw: Machine Check Error on Page Size Change (IFU) (CVE-2018-12207)

    * hw: TSX Transaction Asynchronous Abort (TAA) (CVE-2019-11135)

    * kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)

    * hw: Intel GPU blitter manipulation can allow for arbitrary kernel memory write (CVE-2019-0155)

    * Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)

    * Kernel: page cache side channel attacks (CVE-2019-5489)

    * hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)

    * kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in     drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)

    * kernel: heap overflow in mwifiex_update_vs_ie() function of Marvell WiFi driver (CVE-2019-14816)

    * Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

    * kernel: heap overflow in marvell/mwifiex/tdls.c (CVE-2019-14901)

    * hw: Intel GPU Denial Of Service while accessing MMIO in lower power state (CVE-2019-0154)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * Backport TCP follow-up for small buffers (BZ#1739184)

    * TCP performance regression after CVE-2019-11478 bug fix (BZ#1743170)

    * RHEL8.0 - bnx2x link down, caused by transmit timeouts during load test (Marvell/Cavium/QLogic) (L3:)     (BZ#1743548)

    * block: blk-mq improvement (BZ#1780567)

    * RHEL8.0 - Regression to RHEL7.6 by changing force_latency found during RHEL8.0 validation for SAP HANA     on POWER (BZ#1781111)

    * blk-mq: overwirte performance drops on real MQ device (BZ#1782183)

    * RHEL8: creating vport takes lot of memory i.e 2GB per vport which leads to drain out system memory     quickly. (BZ#1782705)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

ID	Name	Product	Family	Published	Updated	Severity
130950	SUSE SLES12 Security Update : kernel (SUSE-SU-2019:2950-1) (SACK Panic)	Nessus	SuSE Local Security Checks	11/13/2019	4/11/2024	critical
137128	OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0019)	Nessus	OracleVM Local Security Checks	6/4/2020	3/7/2024	high
133221	RHEL 8 : kernel (RHSA-2020:0204)	Nessus	Red Hat Local Security Checks	1/24/2020	6/3/2024	critical

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