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Test ID:1.3.6.1.4.1.25623.1.1.4.2019.2946.1
Category:SuSE Local Security Checks
Title:SUSE: Security Advisory (SUSE-SU-2019:2946-1)
Summary:The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2019:2946-1 advisory.
Description:Summary:
The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2019:2946-1 advisory.

Vulnerability Insight:
The SUSE Linux Enterprise 15 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 [link moved to references] 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 [link moved to references] CVE-2019-0154: Fix a local denial of service via read of unprotected
i915 registers. (bsc#1135966)

CVE-2019-0155: Fix privilege escalation in the i915 driver. Batch
buffers from usermode could have escalated privileges via blitter
command stream. (bsc#1135967)

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-2019-16995: Fix a memory leak in hsr_dev_finalize() if hsr_add_port
failed to add a port, which may have caused denial of service
(bsc#1152685).

CVE-2019-17666: rtlwifi: Fix potential overflow in P2P code
(bsc#1154372).

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-2019-17133: cfg80211 wireless extension did not reject a long SSID
IE, leading to a Buffer Overflow (bsc#1153158).

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).

The following non-security bugs were fixed:
9p: avoid attaching writeback_fid on mmap with type PRIVATE
(bsc#1051510).

acpi / CPPC: do not require the _PSD method (bsc#1051510).

acpi / processor: do not print errors for processorIDs == 0xff
(bsc#1051510).

acpi: CPPC: Set pcc_data[pcc_ss_id] to NULL in
acpi_cppc_processor_exit() (bsc#1051510).

act_mirred: Fix mirred_init_module error handling (bsc#1051510).

alsa: bebob: Fix prototype of helper function to return negative val... [Please see the references for more information on the vulnerabilities]

Affected Software/OS:
'Linux Kernel' package(s) on SUSE Linux Enterprise Workstation Extension 15, SUSE Linux Enterprise Module for Open Buildservice Development Tools 15, SUSE Linux Enterprise Module for Live Patching 15, SUSE Linux Enterprise Module for Legacy Software 15, SUSE Linux Enterprise Module for Development Tools 15, SUSE Linux Enterprise Module for Basesystem 15, SUSE Linux Enterprise High Availability 15

Solution:
Please install the updated package(s).

CVSS Score:
9.3

CVSS Vector:
AV:N/AC:M/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2019-0154
Bugtraq: 20191118 [slackware-security] Slackware 14.2 kernel (SSA:2019-320-01) (Google Search)
https://seclists.org/bugtraq/2019/Nov/26
http://packetstormsecurity.com/files/155375/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00260.html
RedHat Security Advisories: RHSA-2020:0204
https://access.redhat.com/errata/RHSA-2020:0204
https://usn.ubuntu.com/4186-2/
Common Vulnerability Exposure (CVE) ID: CVE-2019-0155
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00242.html
RedHat Security Advisories: RHSA-2019:3841
https://access.redhat.com/errata/RHSA-2019:3841
RedHat Security Advisories: RHSA-2019:3887
https://access.redhat.com/errata/RHSA-2019:3887
RedHat Security Advisories: RHSA-2019:3889
https://access.redhat.com/errata/RHSA-2019:3889
RedHat Security Advisories: RHSA-2019:3908
https://access.redhat.com/errata/RHSA-2019:3908
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