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AUSCERT External Security Bulletin Redistribution
ESB-2024.1853
Security update for the Linux Kernel RT (Live Patch 1 for SLE 15 SP5)
28 March 2024
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AusCERT Security Bulletin Summary
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Product: Linux Kernel RT (Live Patch 1 for SLE 15 SP5)
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2023-39191 CVE-2023-46813 CVE-2023-51779
CVE-2023-6531
Original Bulletin:
https://www.suse.com/support/update/announcement/2024/suse-su-20240995-1
Comment: CVSS (Max): 8.2 CVE-2023-39191 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/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:H/UI:N/S:C/C:H/I:H/A:H
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Security update for the Linux Kernel RT (Live Patch 1 for SLE 15 SP5)
Announcement ID: SUSE-SU-2024:0995-1
Rating: important
o bsc#1215887
o bsc#1216898
References: o bsc#1218487
o bsc#1218610
o CVE-2023-39191
o CVE-2023-46813
Cross-References: o CVE-2023-51779
o CVE-2023-6531
o CVE-2023-39191 ( SUSE ): 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N
/S:C/C:H/I:H/A:H
o CVE-2023-39191 ( NVD ): 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/
S:C/C:H/I:H/A:H
o CVE-2023-46813 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N
/S:U/C:H/I:H/A:H
o CVE-2023-46813 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
CVSS scores: S:U/C:H/I:H/A:H
o CVE-2023-51779 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N
/S:U/C:H/I:H/A:H
o CVE-2023-6531 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
S:U/C:H/I:H/A:H
o CVE-2023-6531 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/
S:U/C:H/I:H/A:H
o openSUSE Leap 15.5
o SUSE Linux Enterprise High Performance Computing 15 SP5
Affected o SUSE Linux Enterprise Live Patching 15-SP5
Products: o SUSE Linux Enterprise Micro 5.5
o SUSE Linux Enterprise Real Time 15 SP5
o SUSE Linux Enterprise Server 15 SP5
o SUSE Linux Enterprise Server for SAP Applications 15 SP5
An update that solves four vulnerabilities can now be installed.
Description:
This update for the Linux Kernel 5.14.21-150500_13_5 fixes several issues.
The following security issues were fixed:
o CVE-2023-6531: Fixed a use-after-free flaw due to a race problem in the
unix garbage collector's deletion of SKB races with
unix_stream_read_generic()on the socket that the SKB is queued on (bsc#
1218487).
o CVE-2023-46813: Fixed a local privilege escalation with user-space programs
that have access to MMIO regions (bsc#1216898).
o CVE-2023-39191: Fixed a lack of validation of dynamic pointers within
user-supplied eBPF programs that may have allowed an attacker with CAP_BPF
privileges to escalate privileges and execute arbitrary code. (bsc#1215863)
o CVE-2023-51779: Fixed a use-after-free because of a bt_sock_ioctl race
condition in bt_sock_recvmsg (bsc#1218610).
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:
o openSUSE Leap 15.5
zypper in -t patch SUSE-2024-995=1
o SUSE Linux Enterprise Live Patching 15-SP5
zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2024-995=1
Package List:
o openSUSE Leap 15.5 (x86_64)
kernel-livepatch-SLE15-SP5-RT_Update_1-debugsource-8-150500.2.2
kernel-livepatch-5_14_21-150500_13_5-rt-8-150500.2.2
kernel-livepatch-5_14_21-150500_13_5-rt-debuginfo-8-150500.2.2
o SUSE Linux Enterprise Live Patching 15-SP5 (x86_64)
kernel-livepatch-SLE15-SP5-RT_Update_1-debugsource-8-150500.2.2
kernel-livepatch-5_14_21-150500_13_5-rt-8-150500.2.2
kernel-livepatch-5_14_21-150500_13_5-rt-debuginfo-8-150500.2.2
References:
o https://www.suse.com/security/cve/CVE-2023-39191.html
o https://www.suse.com/security/cve/CVE-2023-46813.html
o https://www.suse.com/security/cve/CVE-2023-51779.html
o https://www.suse.com/security/cve/CVE-2023-6531.html
o https://bugzilla.suse.com/show_bug.cgi?id=1215887
o https://bugzilla.suse.com/show_bug.cgi?id=1216898
o https://bugzilla.suse.com/show_bug.cgi?id=1218487
o https://bugzilla.suse.com/show_bug.cgi?id=1218610
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