Vulnerability Monitor

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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.

Published

2021-02-10T16:15:13.787

Last Modified

2024-11-21T05:57:23.240

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	invisible-island	xterm	< 366	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	fedoraproject	fedora	33	Yes

References

http://seclists.org/fulldisclosure/2021/May/52 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/02/10/7 Mailing List, Third Party Advisory ([email protected])
https://access.redhat.com/security/cve/CVE-2021-27135 Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1927559 Issue Tracking ([email protected])
https://bugzilla.suse.com/show_bug.cgi?id=1182091 Issue Tracking ([email protected])
https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c Patch, Third Party Advisory ([email protected])
https://invisible-island.net/xterm/xterm.log.html Release Notes, Vendor Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2021/02/msg00019.html Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/ ([email protected])
https://news.ycombinator.com/item?id=26524650 Issue Tracking, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202208-22 Third Party Advisory ([email protected])
https://www.openwall.com/lists/oss-security/2021/02/09/7 Mailing List, Third Party Advisory ([email protected])
https://www.openwall.com/lists/oss-security/2021/02/09/9 Mailing List, Third Party Advisory ([email protected])
http://seclists.org/fulldisclosure/2021/May/52 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2021/02/10/7 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/security/cve/CVE-2021-27135 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1927559 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.suse.com/show_bug.cgi?id=1182091 Issue Tracking (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://invisible-island.net/xterm/xterm.log.html Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2021/02/msg00019.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/ (af854a3a-2127-422b-91ae-364da2661108)
https://news.ycombinator.com/item?id=26524650 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202208-22 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2021/02/09/7 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2021/02/09/9 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)