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CVE-2022-23608

Use after free in PJSIP

Published: Feb 22, 2022Updated: Nov 4, 2025 Sources: CVE List NVD BDUCWE-416
NVD MITRE
8.1CVSSHIGH
EPSS Score
4.0%
Top 10.9%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

PJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In versions up to and including 2.11.1 when in a dialog set (or forking) scenario, a hash key shared by multiple UAC dialogs can potentially be prematurely freed when one of the dialogs is destroyed . The issue may cause a dialog set to be registered in the hash table multiple times (with different hash keys) leading to undefined behavior such as dialog list collision which eventually leading to endless loop. A patch is available in commit db3235953baa56d2fb0e276ca510fefca751643f which will be included in the next release. There are no known workarounds for this issue.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-416

Affected Products

pjprojectpjsip
Mixed
Communications / voip-telephony
PJSIPСообщество свободного программного обеспечения
LibraryLibrary
Operating Systems / unix-bsd
ОСОН ОСнова ОnyxАО «НППКТ»
On-premOS
Operating Systems / linux-distro
pjsipteluu
Mixed
Communications / voip-telephony
certified asteriskasterisk
On-prem
Communications / voip-telephony
pjsiposs-projectCommunicationsaka pjproject, pjmedia-video, pjsip
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ао «нппкт»commercialRUOperating Systems
teluucommercialCommunicationsaka pjsip
asteriskoss-projectCommunicationsaka open source, asterisk appliance developer kit
and 2 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/pjsip/pjproject/security/advisories/GHSA-ffff-m5fm-qm62
github.com
https://github.com/pjsip/pjproject/commit/db3235953baa56d2fb0e276ca510fefca751643f
github.com
http://seclists.org/fulldisclosure/2022/Mar/1
seclists.org
and 11 more references View all →

Timeline

Published
Feb 22, 2022
Last Updated
Nov 4, 2025

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