Description
PJSIP is a free and open source multimedia communication library written in C language. In versions prior to and including 2.12 PJSIP there is a stack-buffer overflow vulnerability which only impacts PJSIP users who accept hashed digest credentials (credentials with data_type `PJSIP_CRED_DATA_DIGEST`). This issue has been patched in the master branch of the PJSIP repository and will be included with the next release. Users unable to upgrade need to check that the hashed digest data length must be equal to `PJSIP_MD5STRLEN` before passing to PJSIP.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| pjsip | pjproject | <= 2.12 | — |
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 | 20230206.0~ds1-1 | — |
| Debian 11 | ring | 20210112.2.b757bac~ds1-1+deb11u1 | DLA-3887-1 |
| Debian 10 | ring | 20190215.1.f152c98~ds1-1+deb10u2 | DLA-3549-1 |
| Debian 9 | pjproject | 2.5.5~dfsg-6+deb9u3 | DLA-2962-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | ring | 20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1 | USN-6422-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 | pjproject | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | pjproject | 2.12.1-r0 | — |
| Alpine v3.23 | pjproject | 2.12.1-r0 | — |
| Alpine v3.22 | pjproject | 2.12.1-r0 | — |
| Alpine v3.21 | pjproject | 2.12.1-r0 | — |
| Alpine v3.20 | pjproject | 2.12.1-r0 | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | pjproject | 2.12.1-r0 | — |
| Alpine v3.18 | pjproject | 2.12.1-r0 | — |
| Alpine v3.17 | pjproject | 2.12.1-r0 | — |
| Alpine v3.16 | pjproject | 2.12.1-r0 | — |
Advisories 4
- USN-6422-1 ring vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 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
- DLA-3549-1 ring - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://github.com/pjsip/pjproject/security/advisories/GHSA-73f7-48m9-w662
- https://github.com/pjsip/pjproject/commit/d27f79da11df7bc8bb56c2f291d71e54df8d2c47
- [debian-lts-announce] 20220328 [SECURITY] [DLA 2962-1] pjproject security update mailing-list
- GLSA-202210-37 vendor-advisory
- [debian-lts-announce] 20230829 [SECURITY] [DLA 3549-1] ring security update mailing-list