Out-of-bounds Write Affecting kernel-default package, versions <5.3.18-150300.59.90.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.08% (35th percentile)

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  • Snyk IDSNYK-SLES153-KERNELDEFAULT-2989869
  • published24 Aug 2022
  • disclosed23 Aug 2022

Introduced: 23 Aug 2022

CVE-2021-33656  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 kernel-default to version 5.3.18-150300.59.90.1 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.

When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.

CVSS Scores

version 3.1