In em28xx_unregister_dvb of em28xx-dvb.c, there is a possible use after free issue. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-111761954References: Upstream kernel

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - kernel: stack-based buffer overflow in chap_server_compute_md5() in iscsi target (CVE-2018-14633)

  - kernel: infinite loop in update_blocked_averages() in kernel/sched/fair.c leading to denial of service     (CVE-2018-20784)

  - The compat_get_timex function in kernel/compat.c in the Linux kernel before 4.16.9 allows local users to     obtain sensitive information from kernel memory via adjtimex. (CVE-2018-11508)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

This plugin has been deprecated as it does not adhere to established standards for this style of check.

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-4118-1 advisory.

    It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow     vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)

    Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode     validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause     a denial of service (system crash). (CVE-2018-13093)

    Wen Xu discovered that the f2fs file system implementation in the Linux kernel did not properly validate     metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a     denial of service (system crash). (CVE-2018-13096, CVE-2018-13097, CVE-2018-13098, CVE-2018-13099,     CVE-2018-13100, CVE-2018-14614, CVE-2018-14615, CVE-2018-14616)

    Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation in the Linux kernel did not     properly validate metadata. An attacker could use this to construct a malicious btrfs image that, when     mounted, could cause a denial of service (system crash). (CVE-2018-14609, CVE-2018-14610, CVE-2018-14611,     CVE-2018-14612, CVE-2018-14613)

    Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle     malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image     that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)

    Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not     properly initialize new files in some situations. A local attacker could use this to expose sensitive     information. (CVE-2018-16862)

    Hui Peng and Mathias Payer discovered that the Option USB High Speed driver in the Linux kernel did not     properly validate metadata received from the device. A physically proximate attacker could use this to     cause a denial of service (system crash). (CVE-2018-19985)

    Hui Peng and Mathias Payer discovered that the USB subsystem in the Linux kernel did not properly handle     size checks when handling an extra USB descriptor. A physically proximate attacker could use this to cause     a denial of service (system crash). (CVE-2018-20169)

    Zhipeng Xie discovered that an infinite loop could be triggered in the CFS Linux kernel process scheduler.
    A local attacker could possibly use this to cause a denial of service. (CVE-2018-20784)

    It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel     when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2018-20856)

    Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not     properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An     attacker could use this to expose sensitive information. (CVE-2018-5383)

    It was discovered that the Intel Wi-Fi device driver in the Linux kernel did not properly validate certain     Tunneled Direct Link Setup (TDLS). A physically proximate attacker could use this to cause a denial of     service (Wi-Fi disconnect). (CVE-2019-0136)

    It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the     Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2019-10126)

    It was discovered that the Bluetooth UART implementation in the Linux kernel did not properly check for     missing tty operations. A local attacker could use this to cause a denial of service. (CVE-2019-10207)

    Amit Klein and Benny Pinkas discovered that the Linux kernel did not sufficiently randomize IP ID values     generated for connectionless networking protocols. A remote attacker could use this to track particular     Linux devices. (CVE-2019-10638)

    Amit Klein and Benny Pinkas discovered that the location of kernel addresses could be exposed by the     implementation of connection-less network protocols in the Linux kernel. A remote attacker could possibly     use this to assist in the exploitation of another vulnerability in the Linux kernel. (CVE-2019-10639)

    Adam Zabrocki discovered that the Intel i915 kernel mode graphics driver in the Linux kernel did not     properly restrict mmap() ranges in some situations. A local attacker could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2019-11085)

    It was discovered that an integer overflow existed in the Linux kernel when reference counting pages,     leading to potential use-after-free issues. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2019-11487)

    Jann Horn discovered that a race condition existed in the Linux kernel when performing core dumps. A local     attacker could use this to cause a denial of service (system crash) or expose sensitive information.
    (CVE-2019-11599)

    It was discovered that a null pointer dereference vulnerability existed in the LSI Logic MegaRAID driver     in the Linux kernel. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2019-11810)

    It was discovered that a race condition leading to a use-after-free existed in the Reliable Datagram     Sockets (RDS) protocol implementation in the Linux kernel. The RDS protocol is disabled via blocklist by     default in Ubuntu.

    If enabled, a local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2019-11815)

    It was discovered that the ext4 file system implementation in the Linux kernel did not properly zero out     memory in some situations. A local attacker could use this to expose sensitive information (kernel     memory). (CVE-2019-11833)

    It was discovered that the Bluetooth Human Interface Device Protocol (HIDP) implementation in the Linux     kernel did not properly verify strings were NULL terminated in certain situations. A local attacker could     use this to expose sensitive information (kernel memory). (CVE-2019-11884)

    It was discovered that a NULL pointer dereference vulnerabilty existed in the Near-field communication     (NFC) implementation in the Linux kernel. An attacker could use this to cause a denial of service (system     crash). (CVE-2019-12818)

    It was discovered that the MDIO bus devices subsystem in the Linux kernel improperly dropped a device     reference in an error condition, leading to a use-after-free. An attacker could use this to cause a denial     of service (system crash). (CVE-2019-12819)

    It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication     (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service     (system crash). (CVE-2019-12984)

    Jann Horn discovered a use-after-free vulnerability in the Linux kernel when accessing LDT entries in some     situations. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2019-13233)

    Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record     credentials in some situations. A local attacker could use this to cause a denial of service (system     crash) or possibly gain administrative privileges. (CVE-2019-13272)

    It was discovered that the GTCO tablet input driver in the Linux kernel did not properly bounds check the     initial HID report sent by the device. A physically proximate attacker could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2019-13631)

    It was discovered that the floppy driver in the Linux kernel did not properly validate meta data, leading     to a buffer overread. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2019-14283)

    It was discovered that the floppy driver in the Linux kernel did not properly validate ioctl() calls,     leading to a division-by-zero. A local attacker could use this to cause a denial of service (system     crash). (CVE-2019-14284)

    Tuba Yavuz discovered that a race condition existed in the DesignWare USB3 DRD Controller device driver in     the Linux kernel. A physically proximate attacker could use this to cause a denial of service.
    (CVE-2019-14763)

    It was discovered that an out-of-bounds read existed in the QLogic QEDI iSCSI Initiator Driver in the     Linux kernel. A local attacker could possibly use this to expose sensitive information (kernel memory).
    (CVE-2019-15090)

    It was discovered that the Raremono AM/FM/SW radio device driver in the Linux kernel did not properly     allocate memory, leading to a use-after-free. A physically proximate attacker could use this to cause a     denial of service or possibly execute arbitrary code. (CVE-2019-15211)

    It was discovered at a double-free error existed in the USB Rio 500 device driver for the Linux kernel. A     physically proximate attacker could use this to cause a denial of service. (CVE-2019-15212)

    It was discovered that a race condition existed in the Advanced Linux Sound Architecture (ALSA) subsystem     of the Linux kernel, leading to a potential use-after-free. A physically proximate attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-15214)

    It was discovered that a race condition existed in the CPiA2 video4linux device driver for the Linux     kernel, leading to a use-after-free. A physically proximate attacker could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2019-15215)

    It was discovered that a race condition existed in the Softmac USB Prism54 device driver in the Linux     kernel. A physically proximate attacker could use this to cause a denial of service (system crash).
    (CVE-2019-15220)

    It was discovered that a use-after-free vulnerability existed in the AppleTalk implementation in the Linux     kernel if an error occurs during initialization. A local attacker could use this to cause a denial of     service (system crash). (CVE-2019-15292)

    It was discovered that the Empia EM28xx DVB USB device driver implementation in the Linux kernel contained     a use-after-free vulnerability when disconnecting the device. An attacker could use this to cause a denial     of service (system crash). (CVE-2019-2024)

    It was discovered that the USB video device class implementation in the Linux kernel did not properly     validate control bits, resulting in an out of bounds buffer read. A local attacker could use this to     possibly expose sensitive information (kernel memory). (CVE-2019-2101)

    It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly     validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2019-3846)

    Jason Wang discovered that an infinite loop vulnerability existed in the virtio net driver in the Linux     kernel. A local attacker in a guest VM could possibly use this to cause a denial of service in the host     system. (CVE-2019-3900)

    Daniele Antonioli, Nils Ole Tippenhauer, and Kasper B. Rasmussen discovered that the Bluetooth protocol     BR/EDR specification did not properly require sufficiently strong encryption key lengths. A physically     proximate attacker could use this to expose sensitive information. (CVE-2019-9506)

    It was discovered that the Appletalk IP encapsulation driver in the Linux kernel did not properly prevent     kernel addresses from being copied to user space. A local attacker with the CAP_NET_ADMIN capability could     use this to expose sensitive information. (CVE-2018-20511)

    It was discovered that a race condition existed in the USB YUREX device driver in the Linux kernel. A     physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15216)

    It was discovered that the Siano USB MDTV receiver device driver in the Linux kernel made improper     assumptions about the device characteristics. A physically proximate attacker could use this cause a     denial of service (system crash). (CVE-2019-15218)

    It was discovered that the Line 6 POD USB device driver in the Linux kernel did not properly validate data     size information from the device. A physically proximate attacker could use this to cause a denial of     service (system crash). (CVE-2019-15221)

    Muyu Yu discovered that the CAN implementation in the Linux kernel in some situations did not properly     restrict the field size when processing outgoing frames. A local attacker with CAP_NET_ADMIN privileges     could use this to execute arbitrary code. (CVE-2019-3701)

    Vladis Dronov discovered that the debug interface for the Linux kernel's HID subsystem did not properly     validate passed parameters in some situations. A local privileged attacker could use this to cause a     denial of service (infinite loop). (CVE-2019-3819)

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 remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4094-1 advisory.

    It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow     vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053)

    Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly track inode     validations. An attacker could use this to construct a malicious XFS image that, when mounted, could cause     a denial of service (system crash). (CVE-2018-13093)

    Wen Xu discovered that the f2fs file system implementation in the Linux kernel did not properly validate     metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a     denial of service (system crash). (CVE-2018-13097, CVE-2018-13099, CVE-2018-13100, CVE-2018-14614,     CVE-2018-14616, CVE-2018-13096, CVE-2018-13098, CVE-2018-14615)

    Wen Xu and Po-Ning Tseng discovered that btrfs file system implementation in the Linux kernel did not     properly validate metadata. An attacker could use this to construct a malicious btrfs image that, when     mounted, could cause a denial of service (system crash). (CVE-2018-14610, CVE-2018-14611, CVE-2018-14612,     CVE-2018-14613, CVE-2018-14609)

    Wen Xu discovered that the HFS+ filesystem implementation in the Linux kernel did not properly handle     malformed catalog data in some situations. An attacker could use this to construct a malicious HFS+ image     that, when mounted, could cause a denial of service (system crash). (CVE-2018-14617)

    Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not     properly initialize new files in some situations. A local attacker could use this to expose sensitive     information. (CVE-2018-16862)

    Hui Peng and Mathias Payer discovered that the USB subsystem in the Linux kernel did not properly handle     size checks when handling an extra USB descriptor. A physically proximate attacker could use this to cause     a denial of service (system crash). (CVE-2018-20169)

    It was discovered that a use-after-free error existed in the block layer subsystem of the Linux kernel     when certain failure conditions occurred. A local attacker could possibly use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2018-20856)

    Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not     properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An     attacker could use this to expose sensitive information. (CVE-2018-5383)

    It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the     Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2019-10126)

    Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors incorrectly handle SWAPGS instructions     during speculative execution. A local attacker could use this to expose sensitive information (kernel     memory). (CVE-2019-1125)

    It was discovered that the PowerPC dlpar implementation in the Linux kernel did not properly check for     allocation errors in some situations. A local attacker could possibly use this to cause a denial of     service (system crash). (CVE-2019-12614)

    It was discovered that a NULL pointer dereference vulnerabilty existed in the Near-field communication     (NFC) implementation in the Linux kernel. An attacker could use this to cause a denial of service (system     crash). (CVE-2019-12818)

    It was discovered that the MDIO bus devices subsystem in the Linux kernel improperly dropped a device     reference in an error condition, leading to a use-after-free. An attacker could use this to cause a denial     of service (system crash). (CVE-2019-12819)

    It was discovered that a NULL pointer dereference vulnerability existed in the Near-field communication     (NFC) implementation in the Linux kernel. A local attacker could use this to cause a denial of service     (system crash). (CVE-2019-12984)

    Jann Horn discovered a use-after-free vulnerability in the Linux kernel when accessing LDT entries in some     situations. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2019-13233)

    Jann Horn discovered that the ptrace implementation in the Linux kernel did not properly record     credentials in some situations. A local attacker could use this to cause a denial of service (system     crash) or possibly gain administrative privileges. (CVE-2019-13272)

    It was discovered that the Empia EM28xx DVB USB device driver implementation in the Linux kernel contained     a use-after-free vulnerability when disconnecting the device. An attacker could use this to cause a denial     of service (system crash). (CVE-2019-2024)

    It was discovered that the USB video device class implementation in the Linux kernel did not properly     validate control bits, resulting in an out of bounds buffer read. A local attacker could use this to     possibly expose sensitive information (kernel memory). (CVE-2019-2101)

    It was discovered that the Marvell Wireless LAN device driver in the Linux kernel did not properly     validate the BSS descriptor. A local attacker could possibly use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2019-3846)

    It was discovered that the Appletalk IP encapsulation driver in the Linux kernel did not properly prevent     kernel addresses from being copied to user space. A local attacker with the CAP_NET_ADMIN capability could     use this to expose sensitive information. (CVE-2018-20511)

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.

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

This updated advisory text adds a note about the need to install new binary packages.

CVE-2018-5995

ADLab of VenusTech discovered that the kernel logged the virtual addresses assigned to per-CPU data, which could make it easier to exploit other vulnerabilities.

CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2019-11091

Multiple researchers have discovered vulnerabilities in the way that Intel processor designs implement speculative forwarding of data filled into temporary microarchitectural structures (buffers). This flaw could allow an attacker controlling an unprivileged process to read sensitive information, including from the kernel and all other processes running on the system, or across guest/host boundaries to read host memory.

See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/m ds.html for more details.

To fully resolve these vulnerabilities it is also necessary to install updated CPU microcode. An updated intel-microcode package (only available in Debian non-free) was provided via DLA-1789-1. The updated CPU microcode may also be available as part of a system firmware ('BIOS') update.

CVE-2019-2024

A use-after-free bug was discovered in the em28xx video capture driver. Local users might be able to use this for denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-3459, CVE-2019-3460

Shlomi Oberman, Yuli Shapiro, and Karamba Security Ltd. research team discovered missing range checks in the Bluetooth L2CAP implementation.
If Bluetooth is enabled, a nearby attacker could use these to read sensitive information from the kernel.

CVE-2019-3882

It was found that the vfio implementation did not limit the number of DMA mappings to device memory. A local user granted ownership of a vfio device could use this to cause a denial of service (out-of-memory condition).

CVE-2019-3901

Jann Horn of Google reported a race condition that would allow a local user to read performance events from a task after it executes a setuid program. This could leak sensitive information processed by setuid programs. Debian's kernel configuration does not allow unprivileged users to access peformance events by default, which fully mitigates this issue.

CVE-2019-6133

Jann Horn of Google found that Policykit's authentication check could be bypassed by a local user creating a process with the same start time and process ID as an older authenticated process. PolicyKit was already updated to fix this in DLA-1644-1. The kernel has additionally been updated to avoid a delay between assigning start time and process ID, which should make the attack impractical.

CVE-2019-9503

Hugues Anguelkov and others at Quarkslab discovered that the brcmfmac (Broadcom wifi FullMAC) driver did not correctly distinguish messages sent by the wifi firmware from other packets. An attacker using the same wifi network could use this for denial of service or to exploit other vulnerabilities in the driver.

CVE-2019-11190

Robert &#x15A;wi&#x119;cki reported that when a setuid program was executed it was still possible to read performance events while the kernel set up the program's address space. A local user could use this to defeat ASLR in a setuid program, making it easier to exploit other vulnerabilities in the program. Debian's kernel configuration does not allow unprivileged users to access peformance events by default, which fully mitigates this issue.

CVE-2019-11486

Jann Horn of Google reported numerous race conditions in the Siemens R3964 line discipline. A local user could use these to cause unspecified security impact. This module has therefore been disabled.

CVE-2019-11599

Jann Horn of Google reported a race condition in the core dump implementation which could lead to a use-after-free. A local user could use this to read sensitive information, to cause a denial of service (memory corruption), or for privilege escalation.

For Debian 8 'Jessie', these problems have been fixed in version 3.16.68-1. This version also includes a fix for Debian bug #927781, and other fixes included in upstream stable updates.

We recommend that you upgrade your linux and linux-latest packages.
You will need to use 'apt-get upgrade --with-new-pkgs' or 'apt upgrade' as the binary package names have changed.

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.

The SUSE Linux Enterprise 12 SP3 Azure kernel was updated to 4.4.176 to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2019-2024: A use-after-free when disconnecting a source was fixed which could lead to crashes. bnc#1129179).

CVE-2019-9213: expand_downwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bnc#1128166).

CVE-2019-6974: kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandled reference counting because of a race condition, leading to a use-after-free. (bnc#1124728)

CVE-2019-3459, CVE-2019-3460: The Bluetooth stack suffered from two remote information leak vulnerabilities in the code that handles incoming L2cap configuration packets (bsc#1120758).

CVE-2019-7221: Fixed a use-after-free vulnerability in the KVM hypervisor related to the emulation of a preemption timer, allowing an guest user/process to crash the host kernel. (bsc#1124732).

CVE-2019-7222: Fixed an information leakage in the KVM hypervisor related to handling page fault exceptions, which allowed a guest user/process to use this flaw to leak the host's stack memory contents to a guest (bsc#1124735).

CVE-2017-18249: The add_free_nid function in fs/f2fs/node.c did not properly track an allocated nid, which allowed local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads (bnc#1087036).

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 SP2 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2019-2024: A use-after-free when disconnecting a source was fixed which could lead to crashes. bnc#1129179).

CVE-2019-9213: expand_downwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bnc#1128166).

CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. (bnc#1107829).

CVE-2019-7221: The KVM implementation in the Linux kernel had a Use-after-Free (bnc#1124732).

CVE-2019-7222: The KVM implementation in the Linux kernel had an Information Leak (bnc#1124735).

CVE-2019-6974: kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandled reference counting because of a race condition, which led to a use-after-free (bnc#1124728).

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 SP3 kernel was updated to 4.4.176 to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2019-9213: expand_downwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bnc#1128166).

CVE-2019-2024: A use-after-free when disconnecting a source was fixed which could lead to crashes. bnc#1129179).

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 openSUSE Leap 42.3 kernel was updated to 4.4.176 to receive various security and bugfixes.

The following security bugs were fixed :

  - CVE-2019-9213: expand_downwards in mm/mmap.c lacked a     check for the mmap minimum address, which made it easier     for attackers to exploit kernel NULL pointer     dereferences on non-SMAP platforms. This is related to a     capability check for the wrong task (bnc#1128166).

  - CVE-2019-2024: A use-after-free when disconnecting a     source was fixed which could lead to crashes.
    bnc#1129179).

The following non-security bugs were fixed :

  - ax25: fix possible use-after-free (bnc#1012382).

  - block_dev: fix crash on chained bios with O_DIRECT     (bsc#1090435).

  - block: do not use bio->bi_vcnt to figure out segment     number (bsc#1128893).

  - bnxt_re: Fix couple of memory leaks that could lead to     IOMMU call traces (bsc#1020413).

  - bpf: fix replace_map_fd_with_map_ptr's ldimm64 second     imm field (bsc#1012382).

  - btrfs: ensure that a DUP or RAID1 block group has     exactly two stripes (bsc#1128452).

  - ceph: avoid repeatedly adding inode to     mdsc->snap_flush_list (bsc#1126773).

  - ch: add missing mutex_lock()/mutex_unlock() in     ch_release() (bsc#1124235).

  - ch: fixup refcounting imbalance for SCSI devices     (bsc#1124235).

  - copy_mount_string: Limit string length to PATH_MAX     (bsc#1082943).

  - device property: Fix the length used in     PROPERTY_ENTRY_STRING() (bsc#1129770).

  - Drivers: hv: vmbus: Check for ring when getting debug     info (bsc#1126389).

  - drm: Fix error handling in drm_legacy_addctx     (bsc#1106929)

  - drm/nouveau/bios/ramcfg: fix missing parentheses when     calculating RON (bsc#1106929)

  - drm/nouveau/pmu: do not print reply values if exec is     false (bsc#1106929)

  - drm/radeon/evergreen_cs: fix missing break in switch     statement (bsc#1106929)

  - drm/vmwgfx: Do not double-free the mode stored in     par->set_mode (bsc#1103429)

  - enic: add wq clean up budget (bsc#1075697, bsc#1120691.
    bsc#1102959).

  - enic: do not overwrite error code (bnc#1012382).

  - fbdev: chipsfb: remove set but not used variable 'size'     (bsc#1106929)

  - ibmvnic: Report actual backing device speed and duplex     values (bsc#1129923).

  - ibmvscsi: Fix empty event pool access during host     removal (bsc#1119019).

  - Input: mms114 - fix license module information     (bsc#1087092).

  - iommu/dmar: Fix buffer overflow during PCI bus     notification (bsc#1129237).

  - iommu/io-pgtable-arm-v7s: Only kmemleak_ignore L2 tables     (bsc#1129238).

  - iommu/vt-d: Check identity map for hot-added devices     (bsc#1129239).

  - iommu/vt-d: Fix NULL pointer reference in     intel_svm_bind_mm() (bsc#1129240).

  - ixgbe: fix crash in build_skb Rx code path (git-fixes).

  - kABI: protect struct inet_peer (kabi).

  - kallsyms: Handle too long symbols in kallsyms.c     (bsc#1126805).

  - KMPs: obsolete older KMPs of the same flavour     (bsc#1127155, bsc#1109137).

  - KVM: arm/arm64: vgic-its: Check CBASER/BASER validity     before enabling the ITS (bsc#1109248).

  - KVM: arm/arm64: vgic-its: Check GITS_BASER Valid bit     before saving tables (bsc#1109248).

  - KVM: arm/arm64: vgic-its: Fix return value for device     table restore (bsc#1109248).

  - KVM: arm/arm64: vgic-its: Fix     vgic_its_restore_collection_table returned value     (bsc#1109248).

  - kvm: nVMX: Do not halt vcpu when L1 is injecting events     to L2 (bsc#1129413).

  - kvm: nVMX: Free the VMREAD/VMWRITE bitmaps if     alloc_kvm_area() fails (bsc#1129414).

  - kvm: nVMX: NMI-window and interrupt-window exiting     should wake L2 from HLT (bsc#1129415).

  - kvm: nVMX: Set VM instruction error for VMPTRLD of     unbacked page (bsc#1129416).

  - kvm: VMX: Do not allow reexecute_instruction() when     skipping MMIO instr (bsc#1129417).

  - kvm: vmx: Set IA32_TSC_AUX for legacy mode guests     (bsc#1129418).

  - kvm: x86: Add AMD's EX_CFG to the list of ignored MSRs     (bsc#1127082).

  - kvm: x86: IA32_ARCH_CAPABILITIES is always supported     (bsc#1129419).

  - libceph: handle an empty authorize reply (bsc#1126772).

  - mdio_bus: Fix use-after-free on device_register fails     (git-fixes).

  - mfd: as3722: Handle interrupts on suspend (bnc#1012382).

  - mfd: as3722: Mark PM functions as __maybe_unused     (bnc#1012382).

  - mISDN: fix a race in dev_expire_timer() (bnc#1012382).

  - mlxsw: pci: Correctly determine if descriptor queue is     full (git-fixes).

  - mlxsw: reg: Use correct offset in field definiton     (git-fixes).

  - mm, devm_memremap_pages: mark devm_memremap_pages()     EXPORT_SYMBOL_GPL (bnc#1012382).

  - mm,memory_hotplug: fix scan_movable_pages() for gigantic     hugepages (bsc#1127731).

  - net: Add header for usage of fls64() (bnc#1012382).

  - net: Do not allocate page fragments that are not skb     aligned (bnc#1012382).

  - net: dsa: bcm_sf2: Do not assume DSA master supports WoL     (git-fixes).

  - net: dsa: mv88e6xxx: fix port VLAN maps (git-fixes).

  - net: Fix for_each_netdev_feature on Big endian     (bnc#1012382).

  - net: fix IPv6 prefix route residue (bnc#1012382).

  - net/hamradio/6pack: Convert timers to use timer_setup()     (git-fixes).

  - net/hamradio/6pack: use mod_timer() to rearm timers     (git-fixes).

  - net: ipv4: use a dedicated counter for icmp_v4 redirect     packets (bnc#1012382).

  - net: lan78xx: Fix race in tx pending skb size     calculation (git-fixes).

  - net/mlx4_core: drop useless LIST_HEAD (git-fixes).

  - net/mlx4_core: Fix qp mtt size calculation (git-fixes).

  - net/mlx4_core: Fix reset flow when in command polling     mode (git-fixes).

  - net/mlx4: Fix endianness issue in qp context params     (git-fixes).

  - net/mlx5: Continue driver initialization despite debugfs     failure (git-fixes).

  - net/mlx5e: Fix TCP checksum in LRO buffers (git-fixes).

  - net/mlx5: Fix driver load bad flow when having fw     initializing timeout (git-fixes).

  - net/mlx5: fix uaccess beyond 'count' in debugfs     read/write handlers (git-fixes).

  - net/mlx5: Fix use-after-free in self-healing flow     (git-fixes).

  - net/mlx5: Return success for PAGE_FAULT_RESUME in     internal error state (git-fixes).

  - net: mv643xx_eth: fix packet corruption with TSO and     tiny unaligned packets (git-fixes).

  - net: phy: Avoid polling PHY with PHY_IGNORE_INTERRUPTS     (git-fixes).

  - net: phy: bcm7xxx: Fix shadow mode 2 disabling     (git-fixes).

  - net: qca_spi: Fix race condition in spi transfers     (git-fixes).

  - net: stmmac: Fix a race in EEE enable callback     (bnc#1012382).

  - net: stmmac: Fix a race in EEE enable callback     (git-fixes).

  - net: thunderx: set tso_hdrs pointer to NULL in     nicvf_free_snd_queue (git-fixes).

  - net/x25: do not hold the cpu too long in x25_new_lci()     (bnc#1012382).

  - pci/pme: Fix hotplug/sysfs remove deadlock in     pcie_pme_remove() (bsc#1129241).

  - perf/x86: Add sysfs entry to freeze counters on SMI     (bsc#1121805).

  - perf/x86/intel: Delay memory deallocation until     x86_pmu_dead_cpu() (bsc#1121805).

  - perf/x86/intel: Do not enable freeze-on-smi for PerfMon     V1 (bsc#1121805).

  - perf/x86/intel: Fix memory corruption (bsc#1121805).

  - perf/x86/intel: Generalize dynamic constraint creation     (bsc#1121805).

  - perf/x86/intel: Implement support for TSX Force Abort     (bsc#1121805).

  - perf/x86/intel: Make cpuc allocations consistent     (bsc#1121805).

  - phy: micrel: Ensure interrupts are reenabled on resume     (git-fixes).

  - powerpc/pseries: Add CPU dlpar remove functionality     (bsc#1128756).

  - powerpc/pseries: Consolidate CPU hotplug code to     hotplug-cpu.c (bsc#1128756).

  - powerpc/pseries: Factor out common cpu hotplug code     (bsc#1128756).

  - powerpc/pseries: Perform full re-add of CPU for topology     update post-migration (bsc#1128756).

  - pppoe: fix reception of frames with no mac header     (git-fixes).

  - pptp: dst_release sk_dst_cache in pptp_sock_destruct     (git-fixes).

  - pseries/energy: Use OF accessor function to read     ibm,drc-indexes (bsc#1129080).

  - RDMA/bnxt_re: Synchronize destroy_qp with poll_cq     (bsc#1125446).

  - Refresh     patches.suse/scsi-do-not-print-reservation-conflict-for-     TEST-UNIT.patch (bsc#1119843)

  - Revert 'mm, devm_memremap_pages: mark     devm_memremap_pages() EXPORT_SYMBOL_GPL' (bnc#1012382).

  - Revert 'x86/platform/UV: Use efi_runtime_lock to     serialise BIOS calls' (bsc#1128565).

  - s390/qeth: cancel close_dev work before removing a card     (LTC#175898, bsc#1127561).

  - scsi: aacraid: Fix missing break in switch statement     (bsc#1128696).

  - scsi: ibmvscsi: Fix empty event pool access during host     removal (bsc#1119019).

  - scsi: lpfc: do not set queue->page_count to 0 if     pc_sli4_params.wqpcnt is invalid (bsc#1127725).

  - scsi: qla2xxx: Fix early srb free on abort     (bsc#1121713).

  - scsi: qla2xxx: Fix for double free of SRB structure     (bsc#1121713).

  - scsi: qla2xxx: Increase abort timeout value     (bsc#1121713).

  - scsi: qla2xxx: Move (get|rel)_sp to base_qpair struct     (bsc#1121713).

  - scsi: qla2xxx: Return switch command on a timeout     (bsc#1121713).

  - scsi: qla2xxx: Turn off IOCB timeout timer on IOCB     completion (bsc#1121713).

  - scsi: qla2xxx: Use correct qpair for ABTS/CMD     (bsc#1121713).

  - scsi: sym53c8xx: fix NULL pointer dereference panic in     sym_int_sir() (bsc#1125315).

  - sky2: Increase D3 delay again (bnc#1012382).

  - tcp: clear icsk_backoff in tcp_write_queue_purge()     (bnc#1012382).

  - tcp: tcp_v4_err() should be more careful (bnc#1012382).

  - team: avoid complex list operations in     team_nl_cmd_options_set() (bnc#1012382).

  - team: Free BPF filter when unregistering netdev     (git-fixes).

  - tracing: Do not free iter->trace in fail path of     tracing_open_pipe() (bsc#1129581).

  - vsock: cope with memory allocation failure at socket     creation time (bnc#1012382).

  - vxlan: test dev->flags & IFF_UP before calling     netif_rx() (bnc#1012382).

  - wireless: airo: potential buffer overflow in sprintf()     (bsc#1120902).

  - x86: Add TSX Force Abort CPUID/MSR (bsc#1121805).

  - x86: livepatch: Treat R_X86_64_PLT32 as R_X86_64_PC32     (bnc#1012382).

  - xen, cpu_hotplug: Prevent an out of bounds access     (bsc#1065600).

  - xen: remove pre-xen3 fallback handlers (bsc#1065600).

  - xfs: remove filestream item xfs_inode reference     (bsc#1127961).

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

The following security bugs were fixed :

CVE-2019-2024: A use-after-free when disconnecting a source was fixed which could lead to crashes. bnc#1129179).

CVE-2019-9213: expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bnc#1128166).

CVE-2019-8980: A memory leak in the kernel_read_file function in fs/exec.c allowed attackers to cause a denial of service (memory consumption) by triggering vfs_read failures (bnc#1126209).

CVE-2019-3819: A flaw was found in the function hid_debug_events_read() in drivers/hid/hid-debug.c file which may enter an infinite loop with certain parameters passed from a userspace. A local privileged user ('root') can cause a system lock up and a denial of service. Versions from v4.18 and newer are vulnerable (bnc#1123161).

CVE-2019-8912: af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr (bnc#1125907).

CVE-2019-7308: kernel/bpf/verifier.c performed undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks (bnc#1124055).

CVE-2019-3459, CVE-2019-3460: The Bluetooth stack suffered from two remote information leak vulnerabilities in the code that handles incoming L2cap configuration packets (bsc#1120758).

CVE-2019-7221: Fixed a user-after-free vulnerability in the KVM hypervisor related to the emulation of a preemption timer, allowing an guest user/process to crash the host kernel. (bsc#1124732).

CVE-2019-7222: Fixed an information leakage in the KVM hypervisor related to handling page fault exceptions, which allowed a guest user/process to use this flaw to leak the host's stack memory contents to a guest (bsc#1124735).

CVE-2019-6974: kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandled reference counting because of a race condition, leading to a use-after-free (bnc#1124728).

CVE-2018-20669: Missing access control checks in ioctl of gpu/drm/i915 driver were fixed which might have lead to information leaks.
(bnc#1122971).

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 Server 12 SP4 Azure kernel was updated to fix various issues.

The following security bugs were fixed :

CVE-2019-2024: A use-after-free when disconnecting a source was fixed which could lead to crashes. bnc#1129179).

CVE-2019-9213: expand_downwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bnc#1128166 1128378 1129016).

CVE-2019-8980: A memory leak in the kernel_read_file function in fs/exec.c allowed attackers to cause a denial of service (memory consumption) by triggering vfs_read failures (bnc#1126209).

CVE-2019-3819: A flaw was found in the function hid_debug_events_read() in drivers/hid/hid-debug.c file which may enter an infinite loop with certain parameters passed from a userspace. A local privileged user ('root') can cause a system lock up and a denial of service. (bnc#1123161).

CVE-2019-8912: af_alg_release() in crypto/af_alg.c neglected to set a NULL value for a certain structure member, which led to a use-after-free in sockfs_setattr (bnc#1125907 1126284).

CVE-2019-7308: kernel/bpf/verifier.c performed undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks (bnc#1124055).

CVE-2019-3459, CVE-2019-3460: The Bluetooth stack suffered from two remote information leak vulnerabilities in the code that handles incoming L2cap configuration packets (bsc#1120758).

CVE-2019-7221: Fixed a use-after-free vulnerability in the KVM hypervisor related to the emulation of a preemption timer, allowing an guest user/process to crash the host kernel. (bsc#1124732).

CVE-2019-7222: Fixed an information leakage in the KVM hypervisor related to handling page fault exceptions, which allowed a guest user/process to use this flaw to leak the host's stack memory contents to a guest (bsc#1124735).

CVE-2019-6974: kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandled reference counting because of a race condition, leading to a use-after-free (bnc#1124728).

CVE-2018-20669: An issue where a provided address with access_ok() is not checked was discovered in i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c where a local attacker can craft a malicious IOCTL function call to overwrite arbitrary kernel memory, resulting in a Denial of Service or privilege escalation (bnc#1122971).

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-2018-20669: Missing access control checks in ioctl of gpu/drm/i915 driver were fixed which might have lead to information leaks.
(bnc#1122971).

CVE-2019-3459, CVE-2019-3460: The Bluetooth stack suffered from two remote information leak vulnerabilities in the code that handles incoming L2cap configuration packets (bsc#1120758).

CVE-2019-3819: A flaw was found in the function hid_debug_events_read() in drivers/hid/hid-debug.c file which may enter an infinite loop with certain parameters passed from a userspace. A local privileged user ('root') can cause a system lock up and a denial of service. (bnc#1123161).

CVE-2019-6974: kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandled reference counting because of a race condition, leading to a use-after-free (bnc#1124728 ).

CVE-2019-7221: Fixed a use-after-free vulnerability in the KVM hypervisor related to the emulation of a preemption timer, allowing an guest user/process to crash the host kernel. (bsc#1124732).

CVE-2019-7222: Fixed an information leakage in the KVM hypervisor related to handling page fault exceptions, which allowed a guest user/process to use this flaw to leak the host's stack memory contents to a guest (bsc#1124735).

CVE-2019-7308: kernel/bpf/verifier.c performed undesirable out-of-bounds speculation on pointer arithmetic in various cases, including cases of different branches with different state or limits to sanitize, leading to side-channel attacks (bnc#1124055).

CVE-2019-8912: af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr (bnc#1125907).

CVE-2019-8980: A memory leak in the kernel_read_file function in fs/exec.c allowed attackers to cause a denial of service (memory consumption) by triggering vfs_read failures (bnc#1126209).

CVE-2019-9213: expand_downwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bnc#1128166).

CVE-2019-2024: A use-after-free when disconnecting a source was fixed which could lead to crashes. bnc#1129179).

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.

ID	Name	Product	Family	Severity
199918	RHEL 7 : kernel-alt (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
195652	RHEL 7 : kernel (Unpatched Vulnerability) (deprecated)	Nessus	Red Hat Local Security Checks	critical
128478	Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel (AWS) vulnerabilities (USN-4118-1)	Nessus	Ubuntu Local Security Checks	critical
127889	Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4094-1)	Nessus	Ubuntu Local Security Checks	critical
125478	Debian DLA-1799-2 : linux security update (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)	Nessus	Debian Local Security Checks	high
124050	openSUSE Security Update : the Linux Kernel (openSUSE-2019-1193)	Nessus	SuSE Local Security Checks	high
123927	SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0901-1)	Nessus	SuSE Local Security Checks	high
123635	SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0828-1)	Nessus	SuSE Local Security Checks	high
123546	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2019:0801-1)	Nessus	SuSE Local Security Checks	high
123545	openSUSE Security Update : the Linux Kernel (openSUSE-2019-1085)	Nessus	SuSE Local Security Checks	high
123496	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:0784-1)	Nessus	SuSE Local Security Checks	high
123445	SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0767-1)	Nessus	SuSE Local Security Checks	high
123413	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2019:0765-1) (Spectre)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2019-2024

high

Tenable Plugins

critical

critical

critical

critical

high

high

high

high

high

high

high

high

high