Use After Free in Matroska Libebml2
CVE-2017-12780
The ReadData function in ebmlstring.c in libebml2 through 2012-08-26 allows remote attackers to cause a denial of service (invalid free and application crash) via a crafted mkv file.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
- Matroska Libebml2
- Matroska Mkclean — versions 0.8.9
- Matroska Mkvalidator — versions 0.5.1
Weakness classification (CWE)
References
- packetstormsecurity.com/files/144902/mkvalidator-0.5.1-Denial-Of-Service.html (VDB Entry, Third Party Advisory)
- seclists.org/fulldisclosure/2017/Nov/19 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- github.com/Matroska-Org/foundation-source/issues/24 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-12780?
- CVE-2017-12780 is a medium-severity vulnerability in Matroska Libebml2, classified under Use After Free. CVSS score: 6.5/10. Published 2017-11-10.
- How severe is CVE-2017-12780?
- Medium severity. CVSS v3 base score is 6.5 out of 10.