| Name | CVE-2021-26712 |
| Description | Incorrect access controls in res_srtp.c in Sangoma Asterisk 13.38.1, 16.16.0, 17.9.1, and 18.2.0 and Certified Asterisk 16.8-cert5 allow a remote unauthenticated attacker to prematurely terminate secure calls by replaying SRTP packets. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| asterisk (PTS) | jessie, jessie (lts) | 1:11.13.1~dfsg-2+deb8u8 | fixed |
| stretch (security) | 1:13.14.1~dfsg-2+deb9u6 | fixed | |
| stretch (lts), stretch | 1:13.14.1~dfsg-2+deb9u10 | fixed | |
| buster, buster (lts) | 1:16.28.0~dfsg-0+deb10u5 | fixed | |
| buster (security) | 1:16.28.0~dfsg-0+deb10u4 | fixed | |
| bullseye | 1:16.28.0~dfsg-0+deb11u4 | fixed | |
| bullseye (security) | 1:16.28.0~dfsg-0+deb11u5 | fixed | |
| sid | 1:22.0.0~dfsg+~cs6.14.60671435-1 | 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) |
- asterisk <not-affected> (Only affects 16.16)
https://downloads.asterisk.org/pub/security/AST-2021-003.html