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CVE-2022-31031

Potential stack buffer overflow when parsing message as a STUN client

Published: Jun 7, 2022Updated: Nov 4, 2025 Sources: CVE List NVDCWE-120
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
1.8%
Top 24.4%
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 language implementing standard based protocols such as SIP, SDP, RTP, STUN, TURN, and ICE. In versions prior to and including 2.12.1 a stack buffer overflow vulnerability affects PJSIP users that use STUN in their applications, either by: setting a STUN server in their account/media config in PJSUA/PJSUA2 level, or directly using `pjlib-util/stun_simple` API. A patch is available in commit 450baca which should be included in the next release. There are no known workarounds for this issue.

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-120CWE-787

Affected Products

pjsipteluu
Mixed
Communications / voip-telephony
debian linuxdebian
On-premOS
Operating Systems / linux-distro
pjprojectpjsip
Mixed
Communications / voip-telephony
teluucommercialCommunicationsaka pjsip
debianoss-projectGBOperating Systemsaka debian gnu/linux
pjsiposs-projectCommunicationsaka pjproject, pjmedia-video, pjsip

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/pjsip/pjproject/commit/450baca94f475345542c6953832650c390889202
github.com
https://github.com/pjsip/pjproject/security/advisories/GHSA-26j7-ww69-c4qj
github.com
https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html
lists.debian.org
and 4 more references View all →

Timeline

Published
Jun 7, 2022
Last Updated
Nov 4, 2025

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