Incorrect Calculation of Buffer Size Affecting kernel-default package, versions <5.3.18-150300.59.93.1


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-SLES153-KERNELDEFAULT-3023831
  • published15 Sept 2022
  • disclosed14 Sept 2022

Introduced: 14 Sep 2022

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

How to fix?

Upgrade SLES:15.3 kernel-default to version 5.3.18-150300.59.93.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default package and not the kernel-default package as distributed by SLES. See How to fix? for SLES:15.3 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