CVE-2020-6078

Published Mar 24, 2020 CVSS 3.1 · 7.5 High EPSS 3.1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-4671-1 vlc security update
EUVD EUVD EUVD-2020-27232 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.
Ubuntu USN Ubuntu USN USN-7239-1 libmicrodns vulnerabilities
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
talos
Published
Updated
Oct 8, 2026, 9:13 PM
Reserved
Jan 7, 2020, 12:00 AM
Status
Modified
Published
Mar 24, 2020, 9:15 PM
Modified
Oct 8, 2026, 10:17 PM