Vulnerability 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.
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-2020-1001ExploitTechnical 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-2020-1001ExploitTechnical DescriptionThird Party Advisory
- https://www.debian.org/security/2020/dsa-4671Third Party Advisory
FAQ
What is CVE-2020-6078?
CVE-2020-6078 is a vulnerability with a CVSS score of 7.5 (HIGH). 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_he...
How severe is CVE-2020-6078?
CVE-2020-6078 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-2020-6078?
Check the references section above for vendor advisories and patch information. Affected products include: Videolabs Libmicrodns, Debian Debian Linux.