Insufficient Verification of Data Authenticity Affecting rpm-libs package, versions <0:4.11.3-40.79.amzn1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.28% (68th percentile)

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  • Snyk IDSNYK-AMZN201803-RPMLIBS-1726605
  • published27 Sept 2021
  • disclosed26 Mar 2021

Introduced: 26 Mar 2021

CVE-2021-20271  (opens in a new tab)
CWE-345  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 rpm-libs to version 0:4.11.3-40.79.amzn1 or higher.
This issue was patched in ALAS-2021-1521.

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 Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability.

CVSS Scores

version 3.1