CVE-2022-31031 — PJSIP is a free and open source multimedia communication library written in C la
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 ST
Published
2022-06-07T00:00:00.000Z
Last modified
2025-11-04T16:09:46.351Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
01What is this vulnerability?
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…
02Affected products
| Vendor | Product | Versions |
|---|
| pjsip | pjproject | <= 2.12.1 |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2022-06-07T00:00:00.000Z
- Last modified: 2025-11-04T16:09:46.351Z
09References
- github.com — https://github.com/pjsip/pjproject/security/advisories/GHSA-26j7-ww69-c4qj
- github.com — https://github.com/pjsip/pjproject/commit/450baca94f475345542c6953832650c3908892…
- security.gentoo.org — https://security.gentoo.org/glsa/202210-37
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html
- www.debian.org — https://www.debian.org/security/2023/dsa-5358
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
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