Amazon Linux AMI Security Advisory: ALAS-2021-1489
Advisory Release Date: 2021-03-18 17:30 Pacific
Advisory Updated Date: 2021-03-19 22:55 Pacific
A flaw was found in xterm. A specially crafted sequence of combining characters causes an out of bounds write leading to arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-27135)
Run yum update xterm to update your system.