Security update for the Linux Kernel (Live Patch 27 for SLE 15 SP3)
Announcement ID: | SUSE-SU-2023:4871-1 |
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Rating: | important |
References: | |
Cross-References: | |
CVSS scores: |
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Affected Products: |
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An update that solves three vulnerabilities can now be installed.
Description:
This update for the Linux Kernel 5.3.18-150300_59_106 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-2023-4622: 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 15.3
zypper in -t patch SUSE-2023-4871=1
-
SUSE Linux Enterprise Live Patching 15-SP3
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2023-4871=1
Package List:
-
openSUSE Leap 15.3 (ppc64le s390x x86_64)
- kernel-livepatch-5_3_18-150300_59_106-default-11-150300.2.2
- kernel-livepatch-SLE15-SP3_Update_27-debugsource-11-150300.2.2
- kernel-livepatch-5_3_18-150300_59_106-default-debuginfo-11-150300.2.2
-
openSUSE Leap 15.3 (x86_64)
- kernel-livepatch-5_3_18-150300_59_106-preempt-debuginfo-11-150300.2.2
- kernel-livepatch-5_3_18-150300_59_106-preempt-11-150300.2.2
-
SUSE Linux Enterprise Live Patching 15-SP3 (ppc64le s390x x86_64)
- kernel-livepatch-5_3_18-150300_59_106-default-11-150300.2.2
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://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