Incorrect Calculation of Buffer Size Affecting kernel-obs-build package, versions <5.3.18-150200.24.129.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-SLES152-KERNELOBSBUILD-3036274
  • published29 Sept 2022
  • disclosed28 Sept 2022

Introduced: 28 Sep 2022

CVE-2021-4155  (opens in a new tab)
CWE-131  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 kernel-obs-build to version 5.3.18-150200.24.129.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-obs-build package and not the kernel-obs-build package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.

CVSS Scores

version 3.1