Out-of-bounds Read Affecting rpm-build package, versions <0:4.14.3-19.el8


Severity

Recommended
low

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.12% (48th percentile)

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  • Snyk IDSNYK-ALMALINUX8-RPMBUILD-5653771
  • published28 May 2023
  • disclosed9 Nov 2021

Introduced: 9 Nov 2021

CVE-2021-20266  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 rpm-build to version 0:4.14.3-19.el8 or higher.
This issue was patched in ALSA-2021:4489.

NVD Description

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

A flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability.

CVSS Scores

version 3.1