Double Free in Videolabs Libmicrodns
CVE-2020-6072
An exploitable code execution vulnerability exists in the label-parsing functionality of Videolabs libmicrodns 0.1.0. When parsing compressed labels in mDNS messages, the rr_decode function's return value is not checked, leading to a double free that could be exploited to execute arbitrary code. An attacker can send an mDNS message to trigger this vulnerability.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.037 (89.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Videolabs Libmicrodns — versions 0.1.0
- Debian Linux — versions 9.0
- Videolabs — versions Videolabs libmircodns 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-2020-0995 (Technical Description, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-6072?
- CVE-2020-6072 is a critical-severity vulnerability in Videolabs Libmicrodns, classified under Double Free. CVSS score: 9.8/10. Published 2020-03-24.
- How severe is CVE-2020-6072?
- Critical severity. CVSS v3 base score is 9.8 out of 10.