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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.031 (87.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000
Affected products
- Videolabs Libmicrodns — versions 0.1.0
- Debian Linux — versions 9.0, 10.0
- Videolabs — versions Videolabs libmicrodns 0.1.0
Weakness classification (CWE)
References
- www.debian.org/security/2020/dsa-4671 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/202005-10 (vendor-advisory, Third Party Advisory)
- talosintelligence.com/vulnerability_reports/TALOS-2020-1001 (Technical Description, Exploit, Third Party Advisory)
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.