Vulnerability in Videolabs Libmicrodns
CVE-2020-6078
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.
EPSS: 0.030 (86.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Videolabs Libmicrodns — versions 0.1.0
- Debian Debian_linux — versions 9.0, 10.0
- N/a Videolabs — versions Videolabs libmicrodns 0.1.0
Weakness classification (CWE)
References
- talos-cna@cisco.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- talos-cna@cisco.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- talos-cna@cisco.com (Technical Description, Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-6078?
- CVE-2020-6078 is a high-severity vulnerability in Videolabs Libmicrodns, classified under CWE-252. CVSS score: 7.5/10. Published 2020-03-24.
- How severe is CVE-2020-6078?
- High severity. CVSS v3 base score is 7.5 out of 10.