CVE-2020-6079
critical
CVSS v3
—
CVSS v2
—
VIR risk
9.5
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 decoding of the domain name performed by rr_decode.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-6079
Vendor advisory: arch — https://security.archlinux.org/ASA-202004-24
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 0.1.2-1 | |
| debian | forky | fixed | 0.2.0-1 |
| debian | sid | fixed | 0.2.0-1 |
| debian | trixie | fixed | 0.2.0-1 |
| debian | bookworm | fixed | 3.0.8-4 |
| debian | bullseye | fixed | 3.0.8-4 |
References
Verify integrity in audit chain (admin only). AS-IS.