Versions mentioned in the description apply to the upstream
Remediation section below for
Amazon-Linux:2018.03 relevant versions.
Package updates are available for Amazon Linux AMI that fix the following vulnerabilities: CVE-2021-3421: 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. 1927747: CVE-2021-3421 rpm: unsigned signature header leads to string injection into an rpm database CVE-2021-20271: 1934125: CVE-2021-20271 rpm: Signature checks bypass via corrupted rpm package 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.
rpm-python27 to version 4.11.3-40.79.amzn1 or higher.
This issue was patched in