Description
PJSIP is a free and open source multimedia communication library written in C. In versions of PJSIP prior to 2.13 the PJSIP parser, PJMEDIA RTP decoder, and PJMEDIA SDP parser are affeced by a buffer overflow vulnerability. Users connecting to untrusted clients are at risk. This issue has been patched and is available as commit c4d3498 in the master branch and will be included in releases 2.13 and later. Users are advised to upgrade. There are no known workarounds for this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| pjsip | pjproject | < 2.13 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | asterisk | 1:20.0.1~dfsg+~cs6.12.40431414-1 | — |
| Debian 12 | ring | 20230206.0~ds1-1 | — |
| Debian 11 | asterisk | 1:16.28.0~dfsg-0+deb11u2 | DSA-5358-1 |
| Debian 11 | ring | 20210112.2.b757bac~ds1-1+deb11u1 | DLA-3887-1 |
| Debian 10 | asterisk | 1:16.28.0~dfsg-0+deb10u2 | DLA-3335-1 |
| Debian 10 | ring | 20190215.1.f152c98~ds1-1+deb10u2 | DLA-3549-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | asterisk | No fix yet | — |
| Ubuntu 26.04 LTS | asterisk | No fix yet | — |
| Ubuntu 25.10 | asterisk | No fix yet | — |
| Ubuntu 24.04 LTS | asterisk | No fix yet | — |
| Ubuntu 22.04 LTS | asterisk | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | asterisk | No fix yet | — |
| Ubuntu 20.04 LTS | ring | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | USN-6422-1 |
| Ubuntu 18.04 LTS | asterisk | No fix yet | — |
| Ubuntu Pro 18.04 LTS | pjproject | No fix yet | — |
| Ubuntu Pro 18.04 LTS | ring | 20180228.1.503da2b~ds1-1ubuntu0.1~esm1 | USN-6422-1 |
| Ubuntu Pro 16.04 LTS | asterisk +1 | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | pjproject | 2.13-r0 | — |
| Alpine v3.23 | pjproject | 2.13-r0 | — |
| Alpine v3.22 | pjproject | 2.13-r0 | — |
| Alpine v3.21 | pjproject | 2.13-r0 | — |
| Alpine v3.20 | pjproject | 2.13-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | pjproject | 2.13-r0 | — |
| Alpine v3.18 | pjproject | 2.13-r0 | — |
Advisories 5
- USN-6422-1 ring vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-5358-1 asterisk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3887-1 ring - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3335-1 asterisk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3549-1 ring - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/pjsip/pjproject/security/advisories/GHSA-fq45-m3f7-3mhj
- https://github.com/pjsip/pjproject/commit/c4d34984ec92b3d5252a7d5cddd85a1d3a8001ae
- GLSA-202210-37 vendor-advisory
- [debian-lts-announce] 20230222 [SECURITY] [DLA 3335-1] asterisk security update mailing-list
- DSA-5358 vendor-advisory
- [debian-lts-announce] 20230829 [SECURITY] [DLA 3549-1] ring security update mailing-list