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. Buffer overread is possible when parsing a specially crafted STUN message with unknown attribute. The vulnerability affects applications that uses STUN including PJNATH and PJSUA-LIB. The patch is available as a commit in the master branch (2.13.1).
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 | 1:20.4.0~dfsg+~cs6.13.40431414-1 | — |
| 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 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | ring | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | USN-6422-1 |
| 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 v3.18 | asterisk | 18.20.2-r0 | — |
| Alpine v3.17 | asterisk | 18.20.2-r0 | — |
| Alpine v3.16 | asterisk | 18.20.2-r0 | — |
Advisories 6
- 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
- WID-SEC-2023-1726 Asterisk: Schwachstelle ermöglicht Denial of Service oder Offenlegung von Informationen BSI CERT-Bund (WID) · Jul 11, 2023