Improper Verification of Cryptographic Signature Affecting rpm-build-libs package, versions <0:4.11.3-40.amzn2.0.6


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.07% (34th percentile)

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  • Snyk IDSNYK-AMZN2-RPMBUILDLIBS-1702599
  • published27 Sept 2021
  • disclosed19 May 2021

Introduced: 19 May 2021

CVE-2021-3421  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 rpm-build-libs to version 0:4.11.3-40.amzn2.0.6 or higher.
This issue was patched in ALAS2-2021-1689.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rpm-build-libs package and not the rpm-build-libs package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A flaw was found in the RPM package in the read functionality. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package or compromise an RPM repository, to cause RPM database corruption. The highest threat from this vulnerability is to data integrity. This flaw affects RPM versions before 4.17.0-alpha.

CVSS Scores

version 3.1