CVE-2022-24793 — PJSIP is a free and open source multimedia communication library written in C
PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is
Published
2022-04-06T00:00:00.000Z
Last modified
2025-11-04T16:09:38.646Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
01What is this vulnerability?
PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue…
02Affected products
| Vendor | Product | Versions |
|---|
| pjsip | pjproject | <= 2.12 |
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
08Timeline
- Published: 2022-04-06T00:00:00.000Z
- Last modified: 2025-11-04T16:09:38.646Z
09References
- github.com — https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4
- github.com — https://github.com/pjsip/pjproject/commit/9fae8f43accef8ea65d4a8ae9cdf297c46cfe2…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/05/msg00047.html
- security.gentoo.org — https://security.gentoo.org/glsa/202210-37
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html
- www.debian.org — https://www.debian.org/security/2022/dsa-5285
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html
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