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AUSCERT External Security Bulletin Redistribution
ESB-2022.5120
Security update for the Linux Kernel
17 October 2022
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Linux Kernel
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2022-41218 CVE-2022-39188 CVE-2022-3303
CVE-2022-3239 CVE-2022-2663 CVE-2022-2503
Original Bulletin:
https://www.suse.com/support/update/announcement/2022/suse-su-20223586-1
Comment: CVSS (Max): 8.4 CVE-2022-41218 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________
Announcement ID: SUSE-SU-2022:3586-1
Rating: important
References: #1201309 #1202097 #1202385 #1202677 #1202960 #1203107
#1203552
Cross-References: CVE-2022-2503 CVE-2022-2663 CVE-2022-3239 CVE-2022-39188
CVE-2022-41218
Affected Products:
SUSE Linux Enterprise High Availability 12-SP4
SUSE Linux Enterprise High Performance Computing 12-SP4
SUSE Linux Enterprise Live Patching 12-SP4
SUSE Linux Enterprise Server 12-SP4
SUSE Linux Enterprise Server 12-SP4-LTSS
SUSE Linux Enterprise Server for SAP 12-SP4
SUSE OpenStack Cloud 9
SUSE OpenStack Cloud Crowbar 9
______________________________________________________________________________
An update that solves 5 vulnerabilities and has two fixes is now available.
Description:
The SUSE Linux Enterprise 12 SP4 kernel was updated
The following security bugs were fixed:
o CVE-2022-3303: Fixed a race condition in the sound subsystem due to
improper locking (bnc#1203769).
o CVE-2022-41218: Fixed an use-after-free caused by refcount races in drivers
/media/dvb-core/dmxdev.c (bnc#1202960).
o CVE-2022-3239: Fixed an use-after-free in the video4linux driver that could
lead a local user to able to crash the system or escalate their privileges
(bnc#1203552).
o CVE-2022-2503: Fixed a bug in dm-verity, device-mapper table reloads
allowed users with root privileges to switch out the target with an
equivalent dm-linear target and bypass verification till reboot. This
allowed root to bypass LoadPin and can be used to load untrusted and
unverified kernel modules and firmware, which implies arbitrary kernel
execution and persistence for peripherals that do not verify firmware
updates (bnc#1202677).
o CVE-2022-39188: Fixed a race condition where a device driver can free a
page while it still has stale TLB entries. (bnc#1203107).
o CVE-2022-2663: Fixed an issue which allowed a firewall to be bypassed when
users are using unencrypted IRC with nf_conntrack_irc configured (bnc#
1202097).
The following non-security bugs were fixed:
o dtb: Do not include sources in src.rpm - refer to kernel-source Same as
other kernel binary packages there is no need to carry duplicate sources in
dtb packages.
o net: mana: Add rmb after checking owner bits (git-fixes).
o net: mana: Add the Linux MANA PF driver (bug#1201309, jsc#PED-529).
o x86/bugs: Reenable retbleed=off While for older kernels the return thunks
are statically built in and cannot be dynamically patched out, retbleed=off
should still be possible to do so that the mitigation can still be disabled
on Intel who do not use the return thunks but IBRS.
Special Instructions and Notes:
Please reboot the system after installing this update.
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE OpenStack Cloud Crowbar 9:
zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2022-3586=1
o SUSE OpenStack Cloud 9:
zypper in -t patch SUSE-OpenStack-Cloud-9-2022-3586=1
o SUSE Linux Enterprise Server for SAP 12-SP4:
zypper in -t patch SUSE-SLE-SAP-12-SP4-2022-3586=1
o SUSE Linux Enterprise Server 12-SP4-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2022-3586=1
o SUSE Linux Enterprise Live Patching 12-SP4:
zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2022-3586=1
Please note that this is the initial kernel livepatch without fixes itself,
this package is later updated by seperate standalone kernel livepatch
updates.
o SUSE Linux Enterprise High Availability 12-SP4:
zypper in -t patch SUSE-SLE-HA-12-SP4-2022-3586=1
Package List:
o SUSE OpenStack Cloud Crowbar 9 (noarch):
kernel-devel-4.12.14-95.111.1
kernel-macros-4.12.14-95.111.1
kernel-source-4.12.14-95.111.1
o SUSE OpenStack Cloud Crowbar 9 (x86_64):
kernel-default-4.12.14-95.111.1
kernel-default-base-4.12.14-95.111.1
kernel-default-base-debuginfo-4.12.14-95.111.1
kernel-default-debuginfo-4.12.14-95.111.1
kernel-default-debugsource-4.12.14-95.111.1
kernel-default-devel-4.12.14-95.111.1
kernel-default-devel-debuginfo-4.12.14-95.111.1
kernel-syms-4.12.14-95.111.1
o SUSE OpenStack Cloud 9 (x86_64):
kernel-default-4.12.14-95.111.1
kernel-default-base-4.12.14-95.111.1
kernel-default-base-debuginfo-4.12.14-95.111.1
kernel-default-debuginfo-4.12.14-95.111.1
kernel-default-debugsource-4.12.14-95.111.1
kernel-default-devel-4.12.14-95.111.1
kernel-default-devel-debuginfo-4.12.14-95.111.1
kernel-syms-4.12.14-95.111.1
o SUSE OpenStack Cloud 9 (noarch):
kernel-devel-4.12.14-95.111.1
kernel-macros-4.12.14-95.111.1
kernel-source-4.12.14-95.111.1
o SUSE Linux Enterprise Server for SAP 12-SP4 (ppc64le x86_64):
kernel-default-4.12.14-95.111.1
kernel-default-base-4.12.14-95.111.1
kernel-default-base-debuginfo-4.12.14-95.111.1
kernel-default-debuginfo-4.12.14-95.111.1
kernel-default-debugsource-4.12.14-95.111.1
kernel-default-devel-4.12.14-95.111.1
kernel-syms-4.12.14-95.111.1
o SUSE Linux Enterprise Server for SAP 12-SP4 (x86_64):
kernel-default-devel-debuginfo-4.12.14-95.111.1
o SUSE Linux Enterprise Server for SAP 12-SP4 (noarch):
kernel-devel-4.12.14-95.111.1
kernel-macros-4.12.14-95.111.1
kernel-source-4.12.14-95.111.1
o SUSE Linux Enterprise Server 12-SP4-LTSS (aarch64 ppc64le s390x x86_64):
kernel-default-4.12.14-95.111.1
kernel-default-base-4.12.14-95.111.1
kernel-default-base-debuginfo-4.12.14-95.111.1
kernel-default-debuginfo-4.12.14-95.111.1
kernel-default-debugsource-4.12.14-95.111.1
kernel-default-devel-4.12.14-95.111.1
kernel-syms-4.12.14-95.111.1
o SUSE Linux Enterprise Server 12-SP4-LTSS (x86_64):
kernel-default-devel-debuginfo-4.12.14-95.111.1
o SUSE Linux Enterprise Server 12-SP4-LTSS (noarch):
kernel-devel-4.12.14-95.111.1
kernel-macros-4.12.14-95.111.1
kernel-source-4.12.14-95.111.1
o SUSE Linux Enterprise Server 12-SP4-LTSS (s390x):
kernel-default-man-4.12.14-95.111.1
o SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):
kernel-default-kgraft-4.12.14-95.111.1
kernel-default-kgraft-devel-4.12.14-95.111.1
kgraft-patch-4_12_14-95_111-default-1-6.3.1
o SUSE Linux Enterprise High Availability 12-SP4 (ppc64le s390x x86_64):
cluster-md-kmp-default-4.12.14-95.111.1
cluster-md-kmp-default-debuginfo-4.12.14-95.111.1
dlm-kmp-default-4.12.14-95.111.1
dlm-kmp-default-debuginfo-4.12.14-95.111.1
gfs2-kmp-default-4.12.14-95.111.1
gfs2-kmp-default-debuginfo-4.12.14-95.111.1
kernel-default-debuginfo-4.12.14-95.111.1
kernel-default-debugsource-4.12.14-95.111.1
ocfs2-kmp-default-4.12.14-95.111.1
ocfs2-kmp-default-debuginfo-4.12.14-95.111.1
References:
o https://www.suse.com/security/cve/CVE-2022-2503.html
o https://www.suse.com/security/cve/CVE-2022-2663.html
o https://www.suse.com/security/cve/CVE-2022-3239.html
o https://www.suse.com/security/cve/CVE-2022-39188.html
o https://www.suse.com/security/cve/CVE-2022-41218.html
o https://bugzilla.suse.com/1201309
o https://bugzilla.suse.com/1202097
o https://bugzilla.suse.com/1202385
o https://bugzilla.suse.com/1202677
o https://bugzilla.suse.com/1202960
o https://bugzilla.suse.com/1203107
o https://bugzilla.suse.com/1203552
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