SUSE-SU-2023:4142-1: important: Security update for the Linux Kernel
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sle-security-updates at lists.suse.com
Fri Oct 20 12:30:15 UTC 2023
# Security update for the Linux Kernel
Announcement ID: SUSE-SU-2023:4142-1
Rating: important
References:
* bsc#1176588
* bsc#1202845
* bsc#1207270
* bsc#1208995
* bsc#1210169
* bsc#1210643
* bsc#1210658
* bsc#1212703
* bsc#1213812
* bsc#1214233
* bsc#1214351
* bsc#1214380
* bsc#1214386
* bsc#1215115
* bsc#1215117
* bsc#1215150
* bsc#1215221
* bsc#1215275
* bsc#1215299
* bsc#1215322
* bsc#1215356
Cross-References:
* CVE-2020-36766
* CVE-2023-1192
* CVE-2023-1206
* CVE-2023-1859
* CVE-2023-2177
* CVE-2023-4004
* CVE-2023-40283
* CVE-2023-42753
* CVE-2023-4389
* CVE-2023-4622
* CVE-2023-4623
* CVE-2023-4881
* CVE-2023-4921
CVSS scores:
* CVE-2020-36766 ( SUSE ): 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
* CVE-2020-36766 ( NVD ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
* CVE-2023-1192 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-1206 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-1206 ( NVD ): 5.7 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-1859 ( SUSE ): 1.9 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
* CVE-2023-1859 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-2177 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-2177 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2023-4004 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-4004 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-40283 ( SUSE ): 5.7 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
* CVE-2023-40283 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-42753 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-4389 ( SUSE ): 5.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
* CVE-2023-4389 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/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 ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* 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
* CVE-2023-4881 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
* CVE-2023-4881 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
* CVE-2023-4921 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2023-4921 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 13 vulnerabilities and has eight security fixes 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-2023-4389: Fixed a reference counting issue in the Btrfs filesystem that
could be exploited in order to leak internal kernel information or crash the
system (bsc#1214351).
* CVE-2023-42753: Fixed an array indexing vulnerability in the netfilter
subsystem. This issue may have allowed a local user to crash the system or
potentially escalate their privileges (bsc#1215150).
* CVE-2023-1206: Fixed a hash collision flaw in the IPv6 connection lookup
table. A user located in the local network or with a high bandwidth
connection can increase the CPU usage of the server that accepts IPV6
connections up to 95% (bsc#1212703).
* CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network
scheduler which could be exploited to achieve local privilege escalatio
(bsc#1215275).
* CVE-2023-4004: Fixed improper element removal netfilter nft_set_pipapo
(bsc#1213812).
* 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#1215117).
* CVE-2023-4623: Fixed a use-after-free issue in the HFSC network scheduler
which could be exploited to achieve local privilege escalation
(bsc#1215115).
* CVE-2020-36766: Fixed a potential information leak in in the CEC driver
(bsc#1215299).
* CVE-2023-1859: Fixed a use-after-free flaw in Xen transport for 9pfs which
could be exploited to crash the system (bsc#1210169).
* CVE-2023-2177: Fixed a null pointer dereference issue in the sctp network
protocol which could allow a user to crash the system (bsc#1210643).
* CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem
that could lead to potential information disclosure or a denial of service
(bsc#1215221).
* CVE-2023-40283: Fixed use-after-free in l2cap_sock_ready_cb (bsc#1214233).
* CVE-2023-1192: Fixed use-after-free in cifs_demultiplex_thread()
(bsc#1208995).
The following non-security bugs were fixed:
* bnx2x: new flag for track HW resource allocation (bsc#1202845 bsc#1215322).
* check-for-config-changes: ignore BUILTIN_RETURN_ADDRESS_STRIPS_PAC
(bsc#1214380). gcc7 on SLE 15 does not support this while later gcc does.
* locking/rwsem: Disable reader optimistic spinning (bnc#1176588).
* mkspec: Allow unsupported KMPs (bsc#1214386)
* scsi: qedf: Add synchronization between I/O completions and abort
(bsc#1210658).
* x86/pkeys: Revert a5eff7259790 ("x86/pkeys: Add PKRU value to init_fpstate")
(bsc#1215356).
* x86/srso: Do not probe microcode in a guest (git-fixes).
* x86/srso: Fix SBPB enablement for spec_rstack_overflow=off (git-fixes).
* x86/srso: Fix srso_show_state() side effect (git-fixes).
* x86/srso: Set CPUID feature bits independently of bug or mitigation status
(git-fixes).
## 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-5.1-2023-4142=1
* SUSE Linux Enterprise Micro 5.2
zypper in -t patch SUSE-SUSE-MicroOS-5.2-2023-4142=1
* SUSE Linux Enterprise Micro for Rancher 5.2
zypper in -t patch SUSE-SUSE-MicroOS-5.2-2023-4142=1
## Package List:
* SUSE Linux Enterprise Micro 5.1 (nosrc x86_64)
* kernel-rt-5.3.18-150300.144.1
* SUSE Linux Enterprise Micro 5.1 (x86_64)
* kernel-rt-debugsource-5.3.18-150300.144.1
* kernel-rt-debuginfo-5.3.18-150300.144.1
* SUSE Linux Enterprise Micro 5.2 (nosrc x86_64)
* kernel-rt-5.3.18-150300.144.1
* SUSE Linux Enterprise Micro 5.2 (x86_64)
* kernel-rt-debugsource-5.3.18-150300.144.1
* kernel-rt-debuginfo-5.3.18-150300.144.1
* SUSE Linux Enterprise Micro for Rancher 5.2 (nosrc x86_64)
* kernel-rt-5.3.18-150300.144.1
* SUSE Linux Enterprise Micro for Rancher 5.2 (x86_64)
* kernel-rt-debugsource-5.3.18-150300.144.1
* kernel-rt-debuginfo-5.3.18-150300.144.1
## References:
* https://www.suse.com/security/cve/CVE-2020-36766.html
* https://www.suse.com/security/cve/CVE-2023-1192.html
* https://www.suse.com/security/cve/CVE-2023-1206.html
* https://www.suse.com/security/cve/CVE-2023-1859.html
* https://www.suse.com/security/cve/CVE-2023-2177.html
* https://www.suse.com/security/cve/CVE-2023-4004.html
* https://www.suse.com/security/cve/CVE-2023-40283.html
* https://www.suse.com/security/cve/CVE-2023-42753.html
* https://www.suse.com/security/cve/CVE-2023-4389.html
* https://www.suse.com/security/cve/CVE-2023-4622.html
* https://www.suse.com/security/cve/CVE-2023-4623.html
* https://www.suse.com/security/cve/CVE-2023-4881.html
* https://www.suse.com/security/cve/CVE-2023-4921.html
* https://bugzilla.suse.com/show_bug.cgi?id=1176588
* https://bugzilla.suse.com/show_bug.cgi?id=1202845
* https://bugzilla.suse.com/show_bug.cgi?id=1207270
* https://bugzilla.suse.com/show_bug.cgi?id=1208995
* https://bugzilla.suse.com/show_bug.cgi?id=1210169
* https://bugzilla.suse.com/show_bug.cgi?id=1210643
* https://bugzilla.suse.com/show_bug.cgi?id=1210658
* https://bugzilla.suse.com/show_bug.cgi?id=1212703
* https://bugzilla.suse.com/show_bug.cgi?id=1213812
* https://bugzilla.suse.com/show_bug.cgi?id=1214233
* https://bugzilla.suse.com/show_bug.cgi?id=1214351
* https://bugzilla.suse.com/show_bug.cgi?id=1214380
* https://bugzilla.suse.com/show_bug.cgi?id=1214386
* https://bugzilla.suse.com/show_bug.cgi?id=1215115
* https://bugzilla.suse.com/show_bug.cgi?id=1215117
* https://bugzilla.suse.com/show_bug.cgi?id=1215150
* https://bugzilla.suse.com/show_bug.cgi?id=1215221
* https://bugzilla.suse.com/show_bug.cgi?id=1215275
* https://bugzilla.suse.com/show_bug.cgi?id=1215299
* https://bugzilla.suse.com/show_bug.cgi?id=1215322
* https://bugzilla.suse.com/show_bug.cgi?id=1215356
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