| Name | CVE-2021-27135 |
| Description | xterm before Patch #366 allows remote attackers to execute arbitrary code or cause a denial of service (segmentation fault) via a crafted UTF-8 combining character sequence. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2558-1, ELA-363-1 |
| Debian Bugs | 982439 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| xterm (PTS) | jessie, jessie (lts) | 312-2+deb8u4 | fixed |
| stretch (security), stretch (lts), stretch | 327-2+deb9u3 | fixed |
| buster | 344-1+deb10u2 | fixed |
| bullseye | 366-1+deb11u1 | fixed |
| bookworm | 379-1 | fixed |
| sid, trixie | 395-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.openwall.com/lists/oss-security/2021/02/09/7
https://invisible-island.net/xterm/xterm.log.html#xterm_366
https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c