Incorrect Calculation of Buffer Size Affecting kernel-debug package, versions <0:3.10.0-1160.59.1.el7


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELDEBUG-2602484
  • published10 Apr 2022
  • disclosed24 Aug 2022

Introduced: 10 Apr 2022

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

How to fix?

Upgrade Oracle:7 kernel-debug to version 0:3.10.0-1160.59.1.el7 or higher.
This issue was patched in ELSA-2022-0620.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by Oracle. See How to fix? for Oracle:7 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