// For flags

CVE-2021-41141

Missing release of locks in PJSIP

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*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
  • 2024-11-12 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-667: Improper Locking
CAPEC
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