CVE-2020-6072

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-03-24 · updated 2026-10-08
Weakness: CWE-415

Description

An exploitable code execution vulnerability exists in the label-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing compressed labels in mDNS messages, the rr_decode function's return value is not checked, leading to a double free that could be exploited to execute arbitrary code. An attacker can send an mDNS message to trigger this vulnerability.

Affected products

Debian Linux: 9.0
Videolabs Libmicrodns: 0.1.0

References

https://security.gentoo.org/glsa/202005-10
https://talosintelligence.com/vulnerability_reports/TALOS-2020-0995
https://www.debian.org/security/2020/dsa-4671
https://security.gentoo.org/glsa/202005-10
https://talosintelligence.com/vulnerability_reports/TALOS-2020-0995
https://www.debian.org/security/2020/dsa-4671

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