CVE-2021-41141 Information

Description

PJSIP is a free and open source multimedia communication library written in the C language implementing standard based protocols such as SIP SDP RTP STUN TURN and ICE. In various parts of PJSIP when error/failure occurs it is found that the function returns without releasing the currently held locks. This could result in a system deadlock which cause a denial of service for the users. No release has yet been made which contains the linked fix commit. All versions up to an including 2.11.1 are affected. Users may need to manually apply the patch.

CVSS Vector

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

Reference

https://github.com/pjsip/pjproject/security/advisories/GHSA-8fmx-hqw7-6gmc https://github.com/pjsip/pjproject/commit/1aa2c0e0fb60a1b0bf793e0d834073ffe50fb196 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

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5