RHSA-2021:0651 — Security Advisory
Red Hat Security Advisory: xterm security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · February 24, 2021
Updated · November 22, 2025
Topic
An update for xterm is now available for Red Hat Enterprise Linux 8.2 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The xterm program is a terminal emulator for the X Window System. It provides DEC VT102 and Tektronix 4014 compatible terminals for programs that can't use the window system directly.
Security Fix(es):
- xterm: crash when processing combining characters (CVE-2021-27135)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.