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CVE-2023-38703

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

Published: Oct 6, 2023Updated: Apr 10, 2025 Sources: CVE List NVDCWE-416
9.8CRITICAL
NVD MITRE
EPSS Score
1.3%
Top 33.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-416

Affected Products

pjprojectpjsip
Mixed
Communications / voip-telephony
pjsipteluu
Mixed
Communications / voip-telephony
pjsiposs-projectCommunicationsaka pjproject, pjmedia-video, pjsip
teluucommercialCommunicationsaka pjsip

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
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References

https://github.com/pjsip/pjproject/security/advisories/GHSA-f76w-fh7c-pc66
github.com
https://github.com/pjsip/pjproject/commit/6dc9b8c181aff39845f02b4626e0812820d4ef0d
github.com
https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html
lists.debian.org

Timeline

Published
Oct 6, 2023
Last Updated
Apr 10, 2025

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