CVE-2021-20271

Public on 2021-07-08
Modified on 2021-07-15
Description
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.
Severity
Medium
CVSS v3 Base Score
6.7
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 rpm 2021-07-14 20:43 ALAS2-2021-1689
Amazon Linux 1 rpm 2021-07-08 18:38 ALAS-2021-1521

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD CVSSv2 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P
NVD CVSSv3 7.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H