Vulnerability Description
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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Videolabs | Libmicrodns | 0.1.0 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://security.gentoo.org/glsa/202005-10Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1002ExploitTechnical DescriptionThird Party Advisory
- https://www.debian.org/security/2020/dsa-4671Third Party Advisory
- https://security.gentoo.org/glsa/202005-10Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1002ExploitTechnical DescriptionThird Party Advisory
- https://www.debian.org/security/2020/dsa-4671Third Party Advisory
FAQ
What is CVE-2020-6080?
CVE-2020-6080 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 n...
How severe is CVE-2020-6080?
CVE-2020-6080 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-6080?
Check the references section above for vendor advisories and patch information. Affected products include: Videolabs Libmicrodns, Debian Debian Linux.