SUSE-SU-2023:4328-1: important: Security update for the Linux Kernel (Live Patch 18 for SLE 15 SP4)
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Wed Nov 1 08:30:02 UTC 2023
# Security update for the Linux Kernel (Live Patch 18 for SLE 15 SP4)
Announcement ID: SUSE-SU-2023:4328-1
Rating: important
References:
* bsc#1215440
Cross-References:
* CVE-2023-4623
CVSS scores:
* CVE-2023-4623 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-4623 ( 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
* openSUSE Leap 15.5
* SUSE Linux Enterprise High Performance Computing 15 SP4
* SUSE Linux Enterprise High Performance Computing 15 SP5
* SUSE Linux Enterprise Live Patching 15-SP4
* SUSE Linux Enterprise Live Patching 15-SP5
* SUSE Linux Enterprise Micro 5.3
* SUSE Linux Enterprise Micro 5.4
* SUSE Linux Enterprise Micro 5.5
* SUSE Linux Enterprise Real Time 15 SP4
* SUSE Linux Enterprise Real Time 15 SP5
* SUSE Linux Enterprise Server 15 SP4
* SUSE Linux Enterprise Server 15 SP5
* SUSE Linux Enterprise Server for SAP Applications 15 SP4
* SUSE Linux Enterprise Server for SAP Applications 15 SP5
An update that solves one vulnerability can now be installed.
## Description:
This update for the Linux Kernel 5.14.21-150400_24_88 fixes one issue.
The following security issue was fixed:
* CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler
which could be exploited to achieve local privilege escalation
(bsc#1215440).
## 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:
* SUSE Linux Enterprise Live Patching 15-SP4
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2023-4327=1
* openSUSE Leap 15.5
zypper in -t patch SUSE-2023-4328=1
* SUSE Linux Enterprise Live Patching 15-SP5
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2023-4328=1
* openSUSE Leap 15.4
zypper in -t patch SUSE-2023-4327=1
## Package List:
* SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)
* kernel-livepatch-SLE15-SP4_Update_18-debugsource-2-150400.2.1
* kernel-livepatch-5_14_21-150400_24_88-default-2-150400.2.1
* kernel-livepatch-5_14_21-150400_24_88-default-debuginfo-2-150400.2.1
* openSUSE Leap 15.5 (ppc64le s390x x86_64)
* kernel-livepatch-5_14_21-150500_55_28-default-2-150500.2.1
* kernel-livepatch-SLE15-SP5_Update_5-debugsource-2-150500.2.1
* kernel-livepatch-5_14_21-150500_55_28-default-debuginfo-2-150500.2.1
* SUSE Linux Enterprise Live Patching 15-SP5 (ppc64le s390x x86_64)
* kernel-livepatch-5_14_21-150500_55_28-default-2-150500.2.1
* SUSE Linux Enterprise Live Patching 15-SP5 (x86_64)
* kernel-livepatch-SLE15-SP5_Update_5-debugsource-2-150500.2.1
* kernel-livepatch-5_14_21-150500_55_28-default-debuginfo-2-150500.2.1
* openSUSE Leap 15.4 (ppc64le s390x x86_64)
* kernel-livepatch-SLE15-SP4_Update_18-debugsource-2-150400.2.1
* kernel-livepatch-5_14_21-150400_24_88-default-2-150400.2.1
* kernel-livepatch-5_14_21-150400_24_88-default-debuginfo-2-150400.2.1
## References:
* https://www.suse.com/security/cve/CVE-2023-4623.html
* https://bugzilla.suse.com/show_bug.cgi?id=1215440
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