CVE-2022-21723 Information

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 versions 2.11.1 and prior parsing an incoming SIP message that contains a malformed multipart can potentially cause out-of-bound read access. This issue affects all PJSIP users that accept SIP multipart. The patch is available as commit in the master branch. There are no known workarounds.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Reference

https://github.com/pjsip/pjproject/security/advisories/GHSA-7fw8-54cv-r7pm https://github.com/pjsip/pjproject/commit/077b465c33f0aec05a49cd2ca456f9a1b112e896 http://seclists.org/fulldisclosure/2022/Mar/2 http://packetstormsecurity.com/files/166227/Asterisk-Project-Security-Advisory-AST-2022-006.html https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

9.1