// For flags

CVE-2023-38703

PJSIP has use-after-free vulnerability in SRTP media transport

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

PJSIP is a free and open source multimedia communication library written in C with high level API in C, C++, Java, C#, and Python languages. SRTP is a higher level media transport which is stacked upon a lower level media transport such as UDP and ICE. Currently a higher level transport is not synchronized with its lower level transport that may introduce use-after-free issue. This vulnerability affects applications that have SRTP capability (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other than UDP. This vulnerability’s impact may range from unexpected application termination to control flow hijack/memory corruption. The patch is available as a commit in the master branch.

PJSIP es una librería de comunicación multimedia gratuita y de código abierto escrita en C con API de alto nivel en los lenguajes C, C++, Java, C# y Python. SRTP es un transporte de medios de nivel superior que se apila sobre un transporte de medios de nivel inferior, como UDP e ICE. Actualmente, un transporte de nivel superior no está sincronizado con su transporte de nivel inferior, lo que puede introducir un problema de use-after-free. Esta vulnerabilidad afecta a las aplicaciones que tienen capacidad SRTP (`PJMEDIA_HAS_SRTP` está configurado) y utilizan transporte de medios subyacente distinto de UDP. El impacto de esta vulnerabilidad puede variar desde la terminación inesperada de la aplicación hasta el secuestro de flujo de control/corrupción de memoria. El parche está disponible como commit en la rama master.

Multiple security vulnerabilities have been discovered in Asterisk, an Open Source Private Branch Exchange.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2023-07-24 CVE Reserved
  • 2023-10-06 CVE Published
  • 2025-02-13 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
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"
 <= 2.13.1
Search vendor "Teluu" for product "Pjsip" and version " <= 2.13.1"
-
Affected