{"id":"CVE-2020-6078","title":"An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0","summary":"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…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-252"],"vendor":"videolabs","product":"libmicrodns","affected":["libmicrodns = 0.1.0","debian_linux = 9.0","debian_linux = 10.0"],"published":"2020-03-24","updated":"2026-10-08","sourceUpdated":"2026-10-08T22:17:01.993","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-6078","references":[{"url":"https://security.gentoo.org/glsa/202005-10","label":"talos-cna@cisco.com"},{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001","label":"talos-cna@cisco.com"},{"url":"https://www.debian.org/security/2020/dsa-4671","label":"talos-cna@cisco.com"},{"url":"https://security.gentoo.org/glsa/202005-10","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2020/dsa-4671","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.03146,"epssPercentile":0.87544,"ingestedAt":"2026-10-08T23:16:47.305Z","slug":"CVE-2020-6078","body":"## Overview\n\nAn 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.\n\n## Affected\n\n- `libmicrodns = 0.1.0`\n- `debian_linux = 9.0`\n- `debian_linux = 10.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.3,"likelihood":0.6,"exploitation":0,"ransomware":0},"changes":[]}