| Name | CVE-2020-35776 |
| Description | A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses. |
| 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) |
| Debian Bugs | 983158 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| asterisk (PTS) | buster | 1:16.2.1~dfsg-1+deb10u2 | vulnerable |
| buster (security) | 1:16.28.0~dfsg-0+deb10u1 | fixed | |
| bullseye | 1:16.16.1~dfsg-1+deb11u1 | fixed | |
| bullseye (security) | 1:16.28.0~dfsg-0+deb11u1 | fixed | |
| bookworm, sid | 1:20.0.0~dfsg+~cs6.12.40431414-2 | 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) | 1:16.16.1~dfsg-1 | 983158 |
[buster] - asterisk <postponed> (Minor issue)
[stretch] - asterisk <no-dsa> (Minor issue)
https://downloads.asterisk.org/pub/security/AST-2021-001.html
https://issues.asterisk.org/jira/browse/ASTERISK-29227