Debian Security Advisory

DLA-2558-1 xterm -- LTS security update

Date Reported:
13 Feb 2021
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 982439.
In Mitre's CVE dictionary: CVE-2021-27135.
More information:

xterm through Patch #365 allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted UTF-8 character sequence.

For Debian 9 stretch, this problem has been fixed in version 327-2+deb9u1.

We recommend that you upgrade your xterm packages.

For the detailed security status of xterm please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: