SUSE-SU-2022:3779-1: important: Security update for the Linux Kernel

sle-security-updates at sle-security-updates at
Wed Oct 26 16:21:29 UTC 2022

   SUSE Security Update: Security update for the Linux Kernel

Announcement ID:    SUSE-SU-2022:3779-1
Rating:             important
References:         #1202677 #1202960 #1203552 #1203769 
Cross-References:   CVE-2022-2503 CVE-2022-3239 CVE-2022-3303
CVSS scores:
                    CVE-2022-2503 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-2503 (SUSE): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-3239 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-3239 (SUSE): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
                    CVE-2022-3303 (NVD) : 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-3303 (SUSE): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-41218 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
                    CVE-2022-41218 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:
                    SUSE Linux Enterprise Server 12-SP2-BCL

   An update that fixes four vulnerabilities is now available.


   The SUSE Linux Enterprise 12-SP2 kernel was updated receive various
   security and bugfixes.

   The following security bugs were fixed:

   - CVE-2022-3303: Fixed a race condition in the sound subsystem due to
     improper locking (bnc#1203769).
   - CVE-2022-41218: Fixed an use-after-free caused by refcount races in
     drivers/media/dvb-core/dmxdev.c (bnc#1202960).
   - 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).
   - CVE-2022-2503: Fixed a vulnerability that allowed root to bypass LoadPin
     and load untrusted and unverified kernel modules and firmware

   The following non-security bugs were fixed:

   - 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:

   - SUSE Linux Enterprise Server 12-SP2-BCL:

      zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2022-3779=1

Package List:

   - SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):


   - SUSE Linux Enterprise Server 12-SP2-BCL (noarch):



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