| Name | CVE-2022-24793 |
| Description | PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that uses PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| References | DLA-3036-1 |
| Debian Bugs | 1014976, 1014998 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| asterisk (PTS) | buster | 1:16.2.1~dfsg-1+deb10u2 | vulnerable |
| bullseye (security), bullseye | 1:16.16.1~dfsg-1+deb11u1 | vulnerable | |
| bookworm, sid | 1:18.14.0~dfsg+~cs6.12.40431414-1 | fixed | |
| ring (PTS) | buster | 20190215.1.f152c98~ds1-1+deb10u1 | vulnerable |
| sid, bullseye | 20210112.2.b757bac~ds1-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| asterisk | source | stretch | (not affected) | |||
| asterisk | source | (unstable) | 1:18.14.0~~rc1~dfsg+~cs6.12.40431414-1 | 1014976 | ||
| pjproject | source | stretch | 2.5.5~dfsg-6+deb9u5 | DLA-3036-1 | ||
| pjproject | source | (unstable) | (unfixed) | |||
| ring | source | (unstable) | (unfixed) | 1014998 |
[stretch] - asterisk <not-affected> (Vulnerable code not present)
https://github.com/pjsip/pjproject/security/advisories/GHSA-p6g5-v97c-w5q4
https://github.com/pjsip/pjproject/commit/9fae8f43accef8ea65d4a8ae9cdf297c46cfe29a