CVE-2022-21723
Out-of-bounds read in multipart parsing in PJSIP
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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 2.11.1 and prior, parsing an incoming SIP message that contains a malformed multipart can potentially cause out-of-bound read access. This issue affects all PJSIP users that accept SIP multipart. The patch is available as commit in the `master` branch. There are no known workarounds.
Timeline
ID reserved
By GitHub_M
- 2 months later
· 2 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| NVDNVD · Modified | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 4.4% · top 8.7% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.
Weakness
Affected products
References (10)
- https://github.com/pjsip/pjproject/security/advisories/GHSA-7fw8-54cv-r7pm (opens in a new tab)x_transferred
- https://github.com/pjsip/pjproject/commit/077b465c33f0aec05a49cd2ca456f9a1b112e896 (opens in a new tab)x_transferred
- 20220304 AST-2022-006: pjproject: unconstrained malformed multipart SIP message (opens in a new tab)mailing-listx_transferred
- http://packetstormsecurity.com/files/166227/Asterisk-Project-Security-Advisory-AST-2022-006.html (opens in a new tab)x_transferred
- [debian-lts-announce] 20220328 [SECURITY] [DLA 2962-1] pjproject security update (opens in a new tab)mailing-listx_transferred
- GLSA-202210-37 (opens in a new tab)vendor-advisoryx_transferred
- [debian-lts-announce] 20221117 [SECURITY] [DLA 3194-1] asterisk security update (opens in a new tab)mailing-listx_transferred
- DSA-5285 (opens in a new tab)vendor-advisoryx_transferred
- [debian-lts-announce] 20230829 [SECURITY] [DLA 3549-1] ring security update (opens in a new tab)mailing-listx_transferred
- https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-21723)Record last updated .