Amazon Linux AMI Security Advisory: ALAS-2021-1462
Advisory Release Date: 2021-01-12 22:51 Pacific
Advisory Updated Date: 2021-01-13 18:15 Pacific
An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as system availability. (CVE-2020-14363 )
Run yum update libX11 to update your system.