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 before version 2.11.1, there are a couple of issues found in the SSL socket. First, a race condition between callback and destroy, due to the accepted socket having no group lock. Second, the SSL socket parent/listener may get destroyed during handshake. Both issues were reported to happen intermittently in heavy load TLS connections. They cause a crash, resulting in a denial of service. These are fixed in version 2.11.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| pjsip | pjproject | < 2.11.1 | — |
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 | 1:16.16.1~dfsg-2 | — |
| Debian 12 | ring | 20230206.0~ds1-1 | — |
| Debian 11 | asterisk | 1:16.16.1~dfsg-1+deb11u1 | DSA-4999-1 |
| Debian 11 | ring | 20210112.2.b757bac~ds1-1+deb11u1 | DLA-3887-1 |
| Debian 9 | pjproject | 2.5.5~dfsg-6+deb9u3 | DLA-2962-1 |
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 | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | pjproject | 2.11.1-r0 | — |
| Alpine v3.23 | pjproject | 2.11.1-r0 | — |
| Alpine v3.22 | pjproject | 2.11.1-r0 | — |
| Alpine v3.21 | pjproject | 2.11.1-r0 | — |
| Alpine v3.20 | pjproject | 2.11.1-r0 | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | pjproject | 2.11.1-r0 | — |
| Alpine v3.18 | pjproject | 2.11.1-r0 | — |
| Alpine v3.17 | pjproject | 2.11.1-r0 | — |
| Alpine v3.16 | pjproject | 2.11.1-r0 | — |
| Alpine v3.15 | pjproject | 2.11.1-r0 | — |
| Alpine v3.14 | pjproject | 2.11.1-r0 | — |
Advisories 4
- WID-SEC-2024-3631 Asterisk: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Mar 24, 2026
- DSA-4999-1 asterisk - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3887-1 ring - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-2962-1 pjproject - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/pjsip/pjproject/security/advisories/GHSA-cv8x-p47p-99wr
- https://github.com/pjsip/pjproject/pull/2716
- https://github.com/pjsip/pjproject/commit/d5f95aa066f878b0aef6a64e60b61e8626e664cd
- https://github.com/pjsip/pjproject/releases/tag/2.11.1
- DSA-4999 vendor-advisory
- [debian-lts-announce] 20220328 [SECURITY] [DLA 2962-1] pjproject security update mailing-list
- GLSA-202210-37 vendor-advisory