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.
CVE-2020-6078
HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence
Score 7.5 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 7.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 7.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 85.8%
- KEV
- Not listed
Published
March 24, 2020
Last Modified
November 21, 2024
References (6)
- talos-cna@ciscohttps://security.gentoo.org/glsa/202005-10
- talos-cna@ciscohttps://talosintelligence.com/vulnerability_reports/TALOS-2020-1001
- talos-cna@ciscohttps://www.debian.org/security/2020/dsa-4671
- af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202005-10
- af854a3a-2127-422b-91ae-364da2661108https://talosintelligence.com/vulnerability_reports/TALOS-2020-1001
- af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4671
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2020-6078?
CVE-2020-6078 is a high vulnerability published on March 24, 2020. An exploitable denial-of-service vulnerability exists in the message-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing mDNS messages in mdnsrecv, the return value of the mdnsread_header function is not checked, leading to an uninitialized variable usage that eventually results in a…
When was CVE-2020-6078 disclosed?
CVE-2020-6078 was first published in the National Vulnerability Database on March 24, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-6078 actively exploited?
CVE-2020-6078 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 85.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-6078?
CVE-2020-6078 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2020-6078?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-6078, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2020-6078
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