CVE-2021-27135
xterm Heap-Based Buffer Overflow
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.
INFO
Published Date :
Feb. 10, 2021, 4:15 p.m.
Last Modified :
Nov. 7, 2023, 3:31 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-27135 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-27135
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-27135.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-27135 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-27135 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/ -
Modified Analysis by [email protected]
Sep. 30, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202208-22 No Types Assigned https://security.gentoo.org/glsa/202208-22 Third Party Advisory -
CVE Modified by [email protected]
Aug. 15, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202208-22 [No Types Assigned] -
Modified Analysis by [email protected]
Jan. 04, 2022
Action Type Old Value New Value Changed Reference Type http://seclists.org/fulldisclosure/2021/May/52 No Types Assigned http://seclists.org/fulldisclosure/2021/May/52 Mailing List, Third Party Advisory -
CVE Modified by [email protected]
May. 21, 2021
Action Type Old Value New Value Added Reference http://seclists.org/fulldisclosure/2021/May/52 [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 26, 2021
Action Type Old Value New Value Changed Reference Type https://access.redhat.com/security/cve/CVE-2021-27135 No Types Assigned https://access.redhat.com/security/cve/CVE-2021-27135 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1927559 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1927559 Issue Tracking Changed Reference Type https://bugzilla.suse.com/show_bug.cgi?id=1182091 No Types Assigned https://bugzilla.suse.com/show_bug.cgi?id=1182091 Issue Tracking Changed Reference Type https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c No Types Assigned https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c Patch, Third Party Advisory Changed Reference Type https://invisible-island.net/xterm/xterm.log.html No Types Assigned https://invisible-island.net/xterm/xterm.log.html Release Notes, Vendor Advisory Changed Reference Type https://news.ycombinator.com/item?id=26524650 No Types Assigned https://news.ycombinator.com/item?id=26524650 Issue Tracking, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:invisible-island:xterm:*:*:*:*:*:*:*:* versions up to (including) 365 OR *cpe:2.3:a:invisible-island:xterm:*:*:*:*:*:*:*:* versions up to (excluding) 366 -
CVE Modified by [email protected]
Mar. 20, 2021
Action Type Old Value New Value Changed Description xterm through Patch #365 allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted UTF-8 character sequence. 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. Added Reference https://invisible-island.net/xterm/xterm.log.html [No Types Assigned] Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1927559 [No Types Assigned] Added Reference https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c [No Types Assigned] Added Reference https://news.ycombinator.com/item?id=26524650 [No Types Assigned] Added Reference https://access.redhat.com/security/cve/CVE-2021-27135 [No Types Assigned] Added Reference https://bugzilla.suse.com/show_bug.cgi?id=1182091 [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 04, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/ Mailing List, Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 26, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/35LK2ZXEIJUOGOA7FV2TJL3L6LFJ4X5S/ [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 16, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2021/02/10/7 No Types Assigned http://www.openwall.com/lists/oss-security/2021/02/10/7 Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/02/msg00019.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/02/msg00019.html Mailing List, Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2021/02/09/7 No Types Assigned https://www.openwall.com/lists/oss-security/2021/02/09/7 Mailing List, Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2021/02/09/9 No Types Assigned https://www.openwall.com/lists/oss-security/2021/02/09/9 Mailing List, Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:invisible-island:xterm:*:*:*:*:*:*:*:* versions up to (including) 365 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 13, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/02/msg00019.html [No Types Assigned] -
CVE Modified by [email protected]
Feb. 10, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/02/10/7 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-27135 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-27135
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
4.38 }} -0.74%
score
0.91411
percentile