CVE-2020-6080
mediumpriority · track · 31EPSS 0.024 · 84 %ileEURUUSEPSS · scored 2026-10-27
An exploitable denial-of-service vulnerability exists in the resource allocation handling of Videolabs libmicrodns 0.1.0. When encountering errors while parsing mDNS messages, some allocated data is not freed, possibly leading to a denial-of-service condition via resource exhaustion. An attacker can send one mDNS message repeatedly to trigger this vulnerability through the function rr_read_RR [5] reads the current resource record, except for the RDATA section. This is read by the loop at in rr_read. For each RR type, a different function is called. When the RR type is 0x10, the function rr_read_TXT is called at [6].
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
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affected products (12)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
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references (14)
External citations — patches, advisories, analysis.
- http://www.nsfocus.net/vulndb/46273cnnvd
- https://github.com/videolabs/libmicrodnsPatchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-6080cnnvd
- https://packetstormsecurity.com/files/157723/Gentoo-Linux-Security-Advisory-202005-10.htmlcnnvd
- https://security.gentoo.org/glsa/202005-10cnnvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1002cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.1567/cnnvd
- https://www.debian.org/security/2020/dsa-4671cnnvd
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