CVE-2021-41141

Missing release of locks in PJSIP

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

PJSIP es una biblioteca de comunicación multimedia gratuita y de código abierto escrita en lenguaje C que implementa protocolos basados en estándares como SIP, SDP, RTP, STUN, TURN e ICE. En varias partes de PJSIP, cuando es producido un error/fallo, es encontrado que la función retorna sin liberar los bloqueos que se presentan actualmente. Esto podría resultar en un bloqueo del sistema, que causaría una denegación de servicio para los usuarios. Todavía no ha sido realizado ninguna publicación que contenga el commit de corrección vinculado. Todas las versiones hasta la 2.11.1 incluyéndola están afectadas. Es posible que los usuarios tengan que aplicar el parche manualmente

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-09-15 CVE Reserved
2022-01-04 CVE Published
2024-08-04 CVE Updated
2024-09-19 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-667: Improper Locking

CAPEC

References (4)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://github.com/pjsip/pjproject/commit/1aa2c0e0fb60a1b0bf793e0d834073ffe50fb196	2022-11-16
https://github.com/pjsip/pjproject/security/advisories/GHSA-8fmx-hqw7-6gmc	2022-11-16

URL	Date	SRC
https://security.gentoo.org/glsa/202210-37	2022-11-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Teluu Search vendor "Teluu"		Pjsip Search vendor "Teluu" for product "Pjsip"				<= 2.11.1 Search vendor "Teluu" for product "Pjsip" and version " <= 2.11.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected