Published: 22/12/2021 Updated: 30/08/2023

CVSS v2 Base Score: 9.3 | Impact Score: 10 | Exploitability Score: 8.6

CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9

VMScore: 828

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In affected versions if the incoming STUN message contains an ERROR-CODE attribute, the header length is not checked before performing a subtraction operation, potentially resulting in an integer underflow scenario. This issue affects all users that use STUN. A malicious actor located within the victim’s network may forge and send a specially crafted UDP (STUN) message that could remotely execute arbitrary code on the victim’s machine. Users are advised to upgrade as soon as possible. There are no known workarounds.

Vulnerable Product	Search on Vulmon	Subscribe to Product
teluu pjsip
asterisk certified asterisk 16.8.0
asterisk certified asterisk
sangoma asterisk
debian debian linux 9.0
debian debian linux 10.0

Debian Bug report logs - #1014998 ring: CVE-2021-32686 CVE-2021-37706 CVE-2022-21723 CVE-2022-23608 CVE-2021-43299 CVE-2021-43300 CVE-2021-43301 CVE-2021-43302 CVE-2021-43303 CVE-2021-43804 CVE-2021-43845 CVE-2022-21722 CVE-2022-24754 CVE-2022-24763 CVE-2022-24764 CVE-2022-24793 Package: src:ring; Maintainer for src:ring is Debian VoIP Te ...

Multiple security vulnerabilities have been found in Asterisk, an Open Source Private Branch Exchange Buffer overflows and other programming errors could be exploited for information disclosure or the execution of arbitrary code Special care should be taken when upgrading to this new upstream release Some configuration files and options have cha ...

CWE-191 https://github.com/pjsip/pjproject/security/advisories/GHSA-2qpg-f6wf-w984 https://github.com/pjsip/pjproject/commit/15663e3f37091069b8c98a7fce680dc04bc8e865 http://seclists.org/fulldisclosure/2022/Mar/0 http://packetstormsecurity.com/files/166225/Asterisk-Project-Security-Advisory-AST-2022-004.html https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html https://security.gentoo.org/glsa/202210-37 https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html https://www.debian.org/security/2022/dsa-5285 https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1014998 https://nvd.nist.gov https://www.debian.org/security/2022/dsa-5285

CVE-2021-37706

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