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CVE-2021-43804 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 RTCP BYE message contains a reason's length, this declared length is not checked against the actual received packet size, potentially resulting in an out-of-bound read access. This issue affects all users that use PJMEDIA and RTCP. A malicious actor can send a RTCP BYE message with an invalid reason length. 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
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References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/pjsip/pjproject/commit/8b621f192cae14456ee0b0ade52ce6c6f258af1e Patch  Third Party Advisory 
https://github.com/pjsip/pjproject/commit/8b621f192cae14456ee0b0ade52ce6c6f258af1e Patch  Third Party Advisory 
https://github.com/pjsip/pjproject/security/advisories/GHSA-3qx3-cg72-wrh9 Patch  Third Party Advisory 
https://github.com/pjsip/pjproject/security/advisories/GHSA-3qx3-cg72-wrh9 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/2022/03/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/2022/11/msg00021.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
https://security.gentoo.org/glsa/202210-37 Third Party Advisory 
https://security.gentoo.org/glsa/202210-37 Third Party Advisory 
https://www.debian.org/security/2022/dsa-5285 Third Party Advisory 
https://www.debian.org/security/2022/dsa-5285 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-125 Out-of-bounds Read cwe source acceptance level NIST   GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

11 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-43804
NVD Published Date:
12/22/2021
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.