CVE-2021-27135

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 79%
VendorProductVersion
invisible-islandxterm
𝑥
< 366
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
xterm
bullseye
366-1+deb11u1
fixed
bookworm
379-1
fixed
sid
395-1
fixed
trixie
395-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
xterm
groovy
Fixed 353-1ubuntu1.20.10.2
released
focal
Fixed 353-1ubuntu1.20.04.2
released
bionic
Fixed 330-1ubuntu2.2
released
xenial
Fixed 322-1ubuntu1.2
released
trusty
dne
References
http://seclists.org/fulldisclosure/2021/May/52
http://www.openwall.com/lists/oss-security/2021/02/10/7
https://access.redhat.com/security/cve/CVE-2021-27135
https://bugzilla.redhat.com/show_bug.cgi?id=1927559
https://bugzilla.suse.com/show_bug.cgi?id=1182091
https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c
https://invisible-island.net/xterm/xterm.log.html
https://lists.debian.org/debian-lts-announce/2021/02/msg00019.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/
https://news.ycombinator.com/item?id=26524650
https://security.gentoo.org/glsa/202208-22
https://www.openwall.com/lists/oss-security/2021/02/09/7
https://www.openwall.com/lists/oss-security/2021/02/09/9
http://seclists.org/fulldisclosure/2021/May/52
http://www.openwall.com/lists/oss-security/2021/02/10/7
https://access.redhat.com/security/cve/CVE-2021-27135
https://bugzilla.redhat.com/show_bug.cgi?id=1927559
https://bugzilla.suse.com/show_bug.cgi?id=1182091
https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c
https://invisible-island.net/xterm/xterm.log.html
https://lists.debian.org/debian-lts-announce/2021/02/msg00019.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/
https://news.ycombinator.com/item?id=26524650
https://security.gentoo.org/glsa/202208-22
https://www.openwall.com/lists/oss-security/2021/02/09/7
https://www.openwall.com/lists/oss-security/2021/02/09/9