CVE-2015-8791

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.44%
Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory matroska.org Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2015-8791?
CVE-2015-8791 has been scored as a medium severity vulnerability.
How to fix CVE-2015-8791?
To fix CVE-2015-8791, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-8791 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-8791 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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