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CVE-2020-6078

Published: 24 March 2020

An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdns_recv, the return value of the mdns_read_header function is not checked, leading to an uninitialized variable usage that eventually results in a null pointer dereference, leading to service crash. An attacker can send a series of mDNS messages to trigger this vulnerability.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
libmicrodns
Launchpad, Ubuntu, Debian
bionic Needs triage

eoan Ignored
(reached end-of-life)
focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

vlc
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

groovy Ignored
(reached end-of-life)
hirsute Ignored
(reached end-of-life)
impish Ignored
(reached end-of-life)
jammy Needs triage

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Ignored
(end of standard support, was needs-triage)