What’s Vulnerable › Vulnerabilities

CVE-2015-8791

• Severity: medium (CVSS 4.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-01-29 · updated 2026-06-17
• Weakness: CWE-200

Description

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.

Affected products

• Matroska Libebml: through 1.3.2

References

• http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html
• http://lists.opensuse.org/opensuse-updates/2016-01/msg00035.html
• http://www.debian.org/security/2016/dsa-3538
• https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog
• https://github.com/Matroska-Org/libebml/commit/24e5cd7c666b1ddd85619d60486db0a5481c1b90
• http://lists.matroska.org/pipermail/matroska-users/2015-October/006985.html
• http://lists.opensuse.org/opensuse-updates/2016-01/msg00035.html
• http://www.debian.org/security/2016/dsa-3538
• https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog
• https://github.com/Matroska-Org/libebml/commit/24e5cd7c666b1ddd85619d60486db0a5481c1b90

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