CVE-2020-6071

HIGH

libmicrodns 0.1.0 - Denial of Service via Recursive Compression Pointer in mDNS Message

Title source: llm
STIX 2.1

Description

An exploitable denial-of-service vulnerability exists in the resource record-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing compressed labels in mDNS messages, the compression pointer is followed without checking for recursion, leading to a denial of service. An attacker can send an mDNS message to trigger this vulnerability.

References (3)

Core 3
Core References
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2020/dsa-4671
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202005-10
Exploit, Technical Description, Third Party Advisory x_refsource_misc
https://talosintelligence.com/vulnerability_reports/TALOS-2020-0994

Scores

CVSS v3 7.5
EPSS 0.0238
EPSS Percentile 81.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-674
Status published
Products (2)
debian/debian_linux 9.0
videolabs/libmicrodns 0.1.0
Published Mar 24, 2020
Tracked Since Feb 18, 2026