Information disclosure in Matroska Libebml
CVE-2015-8791
The EbmlElement::ReadCodedSizeValue function in libEBML before 1.3.3 allows context-dependent attackers to obtain sensitive information from process heap memory via a crafted length value in an EBML id, which triggers an invalid memory access.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.013 (70.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.debian.org/security/2016/dsa-3538 (vendor-advisory)
- github.com/Matroska-Org/libebml/commit/24e5cd7c666b1ddd85619d60486db0a5481c1b90
- lists.opensuse.org/opensuse-updates/2016-01/msg00035.html (vendor-advisory)
- lists.matroska.org/pipermail/matroska-users/2015-October/006985.html (Vendor Advisory, mailing-list)
- github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog (Vendor Advisory)
Frequently asked questions
- What is CVE-2015-8791?
- CVE-2015-8791 is a medium-severity vulnerability in Matroska Libebml, classified under Information Disclosure. CVSS score: 4.3/10. Published 2016-01-29.
- How severe is CVE-2015-8791?
- Medium severity. CVSS v3 base score is 4.3 out of 10.