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NOTICE UPDATE

NIST has updated the NVD program announcement page with additional information regarding recent concerns and the temporary delays in enrichment efforts.

CVE-2021-27135 Detail

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.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  9.8 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
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/
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 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

12 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-27135
NVD Published Date:
02/10/2021
NVD Last Modified:
11/06/2023
Source:
MITRE