CVEvulnerability
CVE-2021-27135
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-02-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
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.
Affected configurations
• invisible-island xterm (< 366)
• debian debian linux 9.0
• fedoraproject fedora 33
References
- http://seclists.org/fulldisclosure/2021/May/52 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/10/7 Mailing List, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-27135 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1927559 Issue Tracking
- https://bugzilla.suse.com/show_bug.cgi?id=1182091 Issue Tracking
- https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c Patch, Third Party Advisory
- https://invisible-island.net/xterm/xterm.log.html Release Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00019.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/ lists.fedoraproject.org
- https://news.ycombinator.com/item?id=26524650 Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202208-22 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/09/7 Mailing List, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/09/9 Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/52 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/10/7 Mailing List, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-27135 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1927559 Issue Tracking
- https://bugzilla.suse.com/show_bug.cgi?id=1182091 Issue Tracking
- https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c Patch, Third Party Advisory
- https://invisible-island.net/xterm/xterm.log.html Release Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00019.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/ lists.fedoraproject.org
- https://news.ycombinator.com/item?id=26524650 Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202208-22 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/09/7 Mailing List, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/09/9 Mailing List, Third Party Advisory