Use After Free Affecting kernel-livepatch-5_14_21-150400_15_5-rt package, versions <10-150400.2.2


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-SLES154-KERNELLIVEPATCH51421150400155RT-5920415
  • published27 Sept 2023
  • disclosed26 Sept 2023

Introduced: 26 Sep 2023

CVE-2023-3812  (opens in a new tab)
CWE-416  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-livepatch-5_14_21-150400_15_5-rt to version 10-150400.2.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150400_15_5-rt package and not the kernel-livepatch-5_14_21-150400_15_5-rt package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system.

CVSS Base Scores

version 3.1