SUSE-SU-2023:4358-1: important: Security update for the Linux Kernel
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Fri Nov 3 16:30:22 UTC 2023
# Security update for the Linux Kernel
Announcement ID: SUSE-SU-2023:4358-1
Rating: important
References:
* bsc#1212051
* bsc#1214842
* bsc#1215095
* bsc#1215467
* bsc#1215518
* bsc#1215745
* bsc#1215858
* bsc#1215860
* bsc#1215861
* bsc#1216046
Cross-References:
* CVE-2023-2163
* CVE-2023-3111
* CVE-2023-34324
* CVE-2023-3777
* CVE-2023-39189
* CVE-2023-39192
* CVE-2023-39193
* CVE-2023-39194
* CVE-2023-42754
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-2023-3111 ( SUSE ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-3111 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-34324 ( SUSE ): 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* 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-2023-39189 ( SUSE ): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
* CVE-2023-39189 ( NVD ): 5.1 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L
* CVE-2023-39192 ( SUSE ): 6.0 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
* CVE-2023-39192 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L
* CVE-2023-39193 ( SUSE ): 5.1 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L
* CVE-2023-39193 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
* CVE-2023-39194 ( SUSE ): 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
* CVE-2023-39194 ( NVD ): 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N
* CVE-2023-42754 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-42754 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:
* SUSE Linux Enterprise Micro 5.1
* SUSE Linux Enterprise Micro 5.2
* SUSE Linux Enterprise Micro for Rancher 5.2
An update that solves nine vulnerabilities and has one security fix can now be
installed.
## Description:
The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various
security and bugfixes.
The following security bugs were fixed:
* 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#1215518)
* CVE-2023-3777: Fixed a use-after-free vulnerability in netfilter: nf_tables
component can be exploited to achieve local privilege escalation.
(bsc#1215095)
* CVE-2023-34324: Fixed a possible deadlock in Linux kernel event handling.
(bsc#1215745).
* CVE-2023-39189: Fixed a flaw in the Netfilter subsystem that could allow a
local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read,
leading to a crash or information disclosure. (bsc#1216046)
* CVE-2023-3111: Fixed a use-after-free vulnerability in prepare_to_relocate
in fs/btrfs/relocation.c (bsc#1212051).
* CVE-2023-39194: Fixed an out of bounds read in the XFRM subsystem
(bsc#1215861).
* CVE-2023-39193: Fixed an out of bounds read in the xtables subsystem
(bsc#1215860).
* CVE-2023-39192: Fixed an out of bounds read in the netfilter (bsc#1215858).
* CVE-2023-42754: Fixed a NULL pointer dereference in the IPv4 stack that
could lead to denial of service (bsc#1215467).
The following non-security bugs were fixed:
* nvme-fc: Prevent null pointer dereference in nvme_fc_io_getuuid()
(bsc#1214842).
## Special Instructions and Notes:
* Please reboot the system after installing this update.
## 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 Micro 5.1
zypper in -t patch SUSE-SUSE-MicroOS-5.1-2023-4358=1
* SUSE Linux Enterprise Micro 5.2
zypper in -t patch SUSE-SUSE-MicroOS-5.2-2023-4358=1
* SUSE Linux Enterprise Micro for Rancher 5.2
zypper in -t patch SUSE-SUSE-MicroOS-5.2-2023-4358=1
## Package List:
* SUSE Linux Enterprise Micro 5.1 (nosrc x86_64)
* kernel-rt-5.3.18-150300.149.1
* SUSE Linux Enterprise Micro 5.1 (x86_64)
* kernel-rt-debuginfo-5.3.18-150300.149.1
* kernel-rt-debugsource-5.3.18-150300.149.1
* SUSE Linux Enterprise Micro 5.2 (nosrc x86_64)
* kernel-rt-5.3.18-150300.149.1
* SUSE Linux Enterprise Micro 5.2 (x86_64)
* kernel-rt-debuginfo-5.3.18-150300.149.1
* kernel-rt-debugsource-5.3.18-150300.149.1
* SUSE Linux Enterprise Micro for Rancher 5.2 (nosrc x86_64)
* kernel-rt-5.3.18-150300.149.1
* SUSE Linux Enterprise Micro for Rancher 5.2 (x86_64)
* kernel-rt-debuginfo-5.3.18-150300.149.1
* kernel-rt-debugsource-5.3.18-150300.149.1
## References:
* https://www.suse.com/security/cve/CVE-2023-2163.html
* https://www.suse.com/security/cve/CVE-2023-3111.html
* https://www.suse.com/security/cve/CVE-2023-34324.html
* https://www.suse.com/security/cve/CVE-2023-3777.html
* https://www.suse.com/security/cve/CVE-2023-39189.html
* https://www.suse.com/security/cve/CVE-2023-39192.html
* https://www.suse.com/security/cve/CVE-2023-39193.html
* https://www.suse.com/security/cve/CVE-2023-39194.html
* https://www.suse.com/security/cve/CVE-2023-42754.html
* https://bugzilla.suse.com/show_bug.cgi?id=1212051
* https://bugzilla.suse.com/show_bug.cgi?id=1214842
* https://bugzilla.suse.com/show_bug.cgi?id=1215095
* https://bugzilla.suse.com/show_bug.cgi?id=1215467
* https://bugzilla.suse.com/show_bug.cgi?id=1215518
* https://bugzilla.suse.com/show_bug.cgi?id=1215745
* https://bugzilla.suse.com/show_bug.cgi?id=1215858
* https://bugzilla.suse.com/show_bug.cgi?id=1215860
* https://bugzilla.suse.com/show_bug.cgi?id=1215861
* https://bugzilla.suse.com/show_bug.cgi?id=1216046
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