SUSE-SU-2023:4801-1: important: Security update for the Linux Kernel (Live Patch 18 for SLE 15 SP4)
null at suse.de
null at suse.de
Wed Dec 13 20:30:15 UTC 2023
# Security update for the Linux Kernel (Live Patch 18 for SLE 15 SP4)
Announcement ID: SUSE-SU-2023:4801-1
Rating: important
References:
* bsc#1215097
* bsc#1215442
* bsc#1215519
* bsc#1215971
Cross-References:
* CVE-2023-2163
* CVE-2023-3777
* CVE-2023-4622
* CVE-2023-5345
CVSS scores:
* CVE-2023-2163 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
* CVE-2023-2163 ( NVD ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
* CVE-2023-3777 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-3777 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-4622 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-4622 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-5345 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-5345 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
* openSUSE Leap 15.4
* SUSE Linux Enterprise High Performance Computing 15 SP4
* SUSE Linux Enterprise Live Patching 15-SP4
* SUSE Linux Enterprise Micro 5.3
* SUSE Linux Enterprise Micro 5.4
* SUSE Linux Enterprise Real Time 15 SP4
* SUSE Linux Enterprise Server 15 SP4
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
An update that solves four vulnerabilities can now be installed.
## Description:
This update for the Linux Kernel 5.14.21-150400_24_88 fixes several issues.
The following security issues were fixed:
* CVE-2023-3777: Fixed a use-after-free vulnerability in netfilter: nf_tables
component can be exploited to achieve local privilege escalation.
(bsc#1215097)
* CVE-2023-5345: Fixed an use-after-free vulnerability in the fs/smb/client
component which could be exploited to achieve local privilege escalation.
(bsc#1215971)
* CVE-2023-4622: Fixed a use-after-free vulnerability in the Unix domain
sockets component which could be exploited to achieve local privilege
escalation (bsc#1215442).
* CVE-2023-2163: Fixed an incorrect verifier pruning in BPF that could lead to
unsafe code paths being incorrectly marked as safe, resulting in arbitrary
read/write in kernel memory, lateral privilege escalation, and container
escape. (bsc#1215519)
## Patch Instructions:
To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
* openSUSE Leap 15.4
zypper in -t patch SUSE-2023-4801=1
* SUSE Linux Enterprise Live Patching 15-SP4
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-4801=1
## Package List:
* openSUSE Leap 15.4 (ppc64le s390x x86_64)
* kernel-livepatch-5_14_21-150400_24_88-default-debuginfo-3-150400.2.1
* kernel-livepatch-5_14_21-150400_24_88-default-3-150400.2.1
* kernel-livepatch-SLE15-SP4_Update_18-debugsource-3-150400.2.1
* SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
* kernel-livepatch-5_14_21-150400_24_88-default-debuginfo-3-150400.2.1
* kernel-livepatch-5_14_21-150400_24_88-default-3-150400.2.1
* kernel-livepatch-SLE15-SP4_Update_18-debugsource-3-150400.2.1
## References:
* https://www.suse.com/security/cve/CVE-2023-2163.html
* https://www.suse.com/security/cve/CVE-2023-3777.html
* https://www.suse.com/security/cve/CVE-2023-4622.html
* https://www.suse.com/security/cve/CVE-2023-5345.html
* https://bugzilla.suse.com/show_bug.cgi?id=1215097
* https://bugzilla.suse.com/show_bug.cgi?id=1215442
* https://bugzilla.suse.com/show_bug.cgi?id=1215519
* https://bugzilla.suse.com/show_bug.cgi?id=1215971
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