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SUSE: 2024:0727-1 Critical Kernel Live Patch for Privilege Escalation Risks

suse
Calendar Grey February 29, 2024
Dist Suse Esm H88
Essential patch for SUSE Linux Kernel tackles various vulnerabilities to improve overall safety and reliability of the system.
* bsc#1215300 * bsc#1217116 * bsc#1218733 Cross-References:

Summary

## This update for the Linux Kernel 5.14.21-150500_55_7 fixes several issues. The following security issues were fixed: * CVE-2023-4921: Fixed a use-after-free vulnerability in the QFQ network scheduler which could be exploited to achieve local privilege escalation (bsc#1215300). * CVE-2023-39198: Fixed a race condition leading to a use-after-free in qxl_mode_dumb_create() (bsc#1217116). * CVE-2023-51780: Fixed a use-after-free in do_vcc_ioctl in net/atm/ioctl.c, because of a vcc_recvmsg race condition (bsc#1218733). ## 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-2024-727=1

Topics%20covered

Topics Covered

security advisory critical privilege escalation important suse linux kernel live patching

References

* bsc#1215300

* bsc#1217116

* bsc#1218733

Cross-

* CVE-2023-39198

* CVE-2023-4921

* CVE-2023-51780

CVSS scores:

* CVE-2023-39198 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

* CVE-2023-39198 ( NVD ): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/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

* CVE-2023-51780 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-51780 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/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

Severity
critical
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2024:0727-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical privilege escalation important suse linux kernel live patching

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