Vulnerabilities > CVE-2022-23608 - Use After Free vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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 versions up to and including 2.11.1 when in a dialog set (or forking) scenario, a hash key shared by multiple UAC dialogs can potentially be prematurely freed when one of the dialogs is destroyed . The issue may cause a dialog set to be registered in the hash table multiple times (with different hash keys) leading to undefined behavior such as dialog list collision which eventually leading to endless loop. A patch is available in commit db3235953baa56d2fb0e276ca510fefca751643f which will be included in the next release. There are no known workarounds for this issue.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://github.com/pjsip/pjproject/security/advisories/GHSA-ffff-m5fm-qm62
- https://github.com/pjsip/pjproject/commit/db3235953baa56d2fb0e276ca510fefca751643f
- http://seclists.org/fulldisclosure/2022/Mar/1
- http://packetstormsecurity.com/files/166226/Asterisk-Project-Security-Advisory-AST-2022-005.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00040.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