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


Severity

Recommended
0.0
low
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.17% (56th percentile)

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  • Snyk IDSNYK-RHEL8-RPMLIBS-4168523
  • published26 Jul 2021
  • disclosed11 Mar 2021

Introduced: 11 Mar 2021

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

How to fix?

Upgrade RHEL:8 rpm-libs to version 0:4.14.3-19.el8 or higher.
This issue was patched in RHSA-2021:4489.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rpm-libs package and not the rpm-libs package as distributed by RHEL. See How to fix? for RHEL: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