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High severity7.5OSV Advisory· Published Mar 24, 2020· Updated Jun 17, 2026

CVE-2020-6078

CVE-2020-6078

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.

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Affected products

5
  • Videolabs/LibmicrodnsOSV3 versions
    0.0.1, 0.0.10, 0.0.2, …+ 2 more
    • (no CPE)range: 0.0.1, 0.0.10, 0.0.2, …
    • cpe:2.3:a:videolabs:libmicrodns:0.1.0:*:*:*:*:*:*:*
    • (no CPE)range: =0.1.0
  • Debian/linux2 versions
    cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
    • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

3

News mentions

0

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