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CVE-2021-37706 Detail

Description

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/166225/Asterisk-Project-Security-Advisory-AST-2022-004.html Third Party Advisory  VDB Entry 
http://seclists.org/fulldisclosure/2022/Mar/0 Mailing List  Patch  Third Party Advisory 
https://github.com/pjsip/pjproject/commit/15663e3f37091069b8c98a7fce680dc04bc8e865 Patch  Third Party Advisory 
https://github.com/pjsip/pjproject/security/advisories/GHSA-2qpg-f6wf-w984 Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
https://security.gentoo.org/glsa/202210-37 Third Party Advisory 
https://www.debian.org/security/2022/dsa-5285 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-191 Integer Underflow (Wrap or Wraparound) cwe source acceptance level NIST   GitHub, Inc.  

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-2021-37706
NVD Published Date:
12/22/2021
NVD Last Modified:
08/29/2023
Source:
GitHub, Inc.