| Name | CVE-2021-21375 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2636-1, DLA-2665-1 |
| Debian Bugs | 986815 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| ring (PTS) | bullseye | 20210112.2.b757bac~ds1-1 | fixed |
| bullseye (security) | 20210112.2.b757bac~ds1-1+deb11u1 | fixed | |
| bookworm | 20230206.0~ds2-1.1 | fixed | |
| sid | 20231201.0~ds1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| pjproject | source | stretch | 2.5.5~dfsg-6+deb9u2 | DLA-2636-1 | ||
| pjproject | source | (unstable) | (unfixed) | |||
| ring | source | stretch | 20161221.2.7bd7d91~dfsg1-1+deb9u1 | DLA-2665-1 | ||
| ring | source | buster | 20190215.1.f152c98~ds1-1+deb10u1 | |||
| ring | source | (unstable) | 20210112.2.b757bac~ds1-1 | 986815 |
https://github.com/pjsip/pjproject/security/advisories/GHSA-hvq6-f89p-frvp
https://github.com/pjsip/pjproject/commit/97b3d7addbaa720b7ddb0af9bf6f3e443e664365