| Name | CVE-2020-6080 |
| Description | An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6]. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-4671-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libmicrodns (PTS) | sid, trixie | 0.2.0-1 | fixed |
| vlc (PTS) | jessie, jessie (lts) | 2.2.7-1~deb8u1 | vulnerable |
| stretch (security) | 3.0.12-0+deb9u1 | fixed | |
| stretch (lts), stretch | 3.0.21-0+deb9u1 | fixed | |
| buster, buster (lts) | 3.0.21-0+deb10u1 | fixed | |
| buster (security) | 3.0.20-0+deb10u1 | fixed | |
| bullseye (security), bullseye | 3.0.21-0+deb11u1 | fixed | |
| bookworm (security), bookworm | 3.0.21-0+deb12u1 | fixed | |
| sid, trixie | 3.0.21-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libmicrodns | source | (unstable) | 0.2.0-1 | |||
| vlc | source | wheezy | (unfixed) | end-of-life | ||
| vlc | source | jessie | (unfixed) | end-of-life | ||
| vlc | source | stretch | 3.0.10-0+deb9u1 | DSA-4671-1 | ||
| vlc | source | buster | 3.0.10-0+deb10u1 | DSA-4671-1 | ||
| vlc | source | (unstable) | 3.0.8-4 |
[jessie] - vlc <end-of-life> (Not supported in jessie LTS)
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1002
These were addressed on the source level in 3.0.9, but 3.0.8-4 disables the plugin