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SUSE: 2024:1362-1 Important Security Update: Kernel RT DoS Risk

suse
Calendar Grey April 22, 2024
Dist Suse Esm H88
The latest Linux Kernel RT update for SLE 15 SP5 has been rolled out, effectively resolving critical security vulnerabilities, notably including risks tied to Denial of Service (DoS) attacks.
* bsc#1219296 * bsc#1220828 Cross-References: * CVE-2023-52340

Summary

## This update for the Linux Kernel 5.14.21-150500_13_35 fixes several issues. The following security issues were fixed: * CVE-2024-26622: Fixed UAF write bug in tomoyo_write_control() (bsc#1220828). * CVE-2023-52340: Fixed ICMPv6 “Packet Too Big” packets force a DoS of the Linux kernel by forcing 100% CPU (bsc#1219296). ## 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 15.5 zypper in -t patch SUSE-2024-1362=1 * SUSE Linux Enterprise Live Patching 15-SP5 zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP5-2024-1362=1 ## Package List: * openSUSE Leap 15.5 (x86_64)

Topics%20covered

Topics Covered

security advisory DoS attack patch important kernel SUSE Linux Kernel

References

* bsc#1219296

* bsc#1220828

Cross-

* CVE-2023-52340

* CVE-2024-26622

CVSS scores:

* CVE-2023-52340 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2024-26622 ( SUSE ): 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 15.5

* SUSE Linux Enterprise High Performance Computing 15 SP5

* SUSE Linux Enterprise Live Patching 15-SP5

* SUSE Linux Enterprise Micro 5.5

* SUSE Linux Enterprise Real Time 15 SP5

* SUSE Linux Enterprise Server 15 SP5

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves two vulnerabilities can now be installed.

##

* https://www.suse.com/security/cve/CVE-2023-52340.html

* https://www.suse.com/security/cve/CVE-2024-26622.html

* https://bugzilla.suse.com/show_bug.cgi?id=1219296

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2024:1362-1
Rating: important

Topics%20covered

Topics Covered

security advisory DoS attack patch important kernel SUSE Linux Kernel

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