| Name | CVE-2021-26720 |
| Description | avahi-daemon-check-dns.sh in the Debian avahi package through 0.8-4 is ... |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3047-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| avahi (PTS) | bullseye | 0.8-5+deb11u2 | fixed |
| bullseye (security) | 0.8-5+deb11u3 | fixed |
| bookworm | 0.8-10+deb12u1 | fixed |
| trixie | 0.8-16 | fixed |
| forky, sid | 0.8-18 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| avahi | source | stretch | 0.6.32-2+deb9u1 | | DLA-3047-1 | |
| avahi | source | buster | 0.7-4+deb10u1 | | | |
| avahi | source | (unstable) | 0.8-4 | | | |
Notes
https://www.openwall.com/lists/oss-security/2021/02/15/2
Fixed by removing the avahi-daemon-check-dns.sh script.