Out-of-bounds Write Affecting kernel-tools-libs-devel package, versions <0:4.18.0-305.12.1.el8_4


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.21% (61st percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELTOOLSLIBSDEVEL-5616094
  • published28 May 2023
  • disclosed10 Aug 2021

Introduced: 10 Aug 2021

CVE-2021-22555  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-tools-libs-devel to version 0:4.18.0-305.12.1.el8_4 or higher.
This issue was patched in ALSA-2021:3057.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-libs-devel package and not the kernel-tools-libs-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space

CVSS Scores

version 3.1