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 PJSIP version 2.10 and earlier, after an initial INVITE has been sent, when two 183 responses are received, with the first one causing negotiation failure, a crash will occur. This results in a denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| pjsip | pjproject | <= 2.10 | — |
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 12 | ring | 20210112.2.b757bac~ds1-1 | — |
| Debian 9 | pjproject | 2.5.5~dfsg-6+deb9u2 | DLA-2636-1 |
| Debian 9 | ring | 20161221.2.7bd7d91~dfsg1-1+deb9u1 | DLA-2665-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | pjproject | 2.7.2~dfsg-1ubuntu0.1~esm1 | — |
| Ubuntu Pro 16.04 LTS | pjproject | 2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1 | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | pjproject | 2.11-r0 | — |
| Alpine v3.23 | pjproject | 2.11-r0 | — |
| Alpine v3.22 | pjproject | 2.11-r0 | — |
| Alpine v3.21 | pjproject | 2.11-r0 | — |
| Alpine v3.20 | pjproject | 2.11-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | pjproject | 2.11-r0 | — |
| Alpine v3.18 | pjproject | 2.11-r0 | — |
| Alpine v3.17 | pjproject | 2.11-r0 | — |
| Alpine v3.16 | pjproject | 2.11-r0 | — |
| Alpine v3.15 | pjproject | 2.11-r0 | — |
| Alpine v3.14 | pjproject | 2.11-r0 | — |
Advisories 2
- DLA-2636-1 pjproject - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2665-1 ring - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/pjsip/pjproject/security/advisories/GHSA-hvq6-f89p-frvp
- https://github.com/pjsip/pjproject/commit/97b3d7addbaa720b7ddb0af9bf6f3e443e664365
- [debian-lts-announce] 20210423 [SECURITY] [DLA 2636-1] pjproject security update mailing-list
- [debian-lts-announce] 20210523 [SECURITY] [DLA 2665-1] ring security update mailing-list
- GLSA-202107-42 vendor-advisory