| Name | CVE-2021-31878 |
| Description | An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| asterisk (PTS) | buster | 1:16.2.1~dfsg-1+deb10u2 | fixed |
| buster (security) | 1:16.28.0~dfsg-0+deb10u4 | fixed |
| bullseye | 1:16.28.0~dfsg-0+deb11u3 | fixed |
| bullseye (security) | 1:16.28.0~dfsg-0+deb11u4 | fixed |
| sid | 1:20.6.0~dfsg+~cs6.13.40431414-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| asterisk | source | (unstable) | (not affected) | | | |
Notes
- asterisk <not-affected> (Vulnerability introduced in 16.17.0)
http://downloads.asterisk.org/pub/security/AST-2021-007.html
https://issues.asterisk.org/jira/browse/ASTERISK-29381