Out-of-bounds Write Affecting kernel-azure package, versions <5.14.21-150500.33.66.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-SLES155-KERNELAZURE-7930482
  • published11 Sept 2024
  • disclosed10 Sept 2024

Introduced: 10 Sep 2024

CVE-2024-44938  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-azure to version 5.14.21-150500.33.66.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-azure package and not the kernel-azure package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

jfs: Fix shift-out-of-bounds in dbDiscardAG

When searching for the next smaller log2 block, BLKSTOL2() returned 0, causing shift exponent -1 to be negative.

This patch fixes the issue by exiting the loop directly when negative shift is found.

CVSS Scores

version 3.1