CVE-2020-6079 An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0.

What is CVE-2020-6079?

CVE-2020-6079 is a high-severity vulnerability in Debian Debian Linux, published on 24 Mar 2020.

Official 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.

Weakness: CWE-401

Which versions are affected by CVE-2020-6079?

It affects 2 products.

Products include Debian Debian Linux, Videolabs Libmicrodns.

How do I fix CVE-2020-6079?

Upgrade to a fixed version.

Is CVE-2020-6079 being exploited?

There is no known exploitation of CVE-2020-6079 in the wild and no public exploit code.

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• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-6079, GHSA-484g-rjcp-74rc, UBUNTU-CVE-2020-6079.