SB2016012902 - Use-after-free in www.matroska libebml
Published: January 29, 2016 Updated: July 28, 2020
Security Bulletin ID
SB2016012902
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2015-8789)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing a "deeply nested element with infinite size" followed by another element of an upper level in an EBML document. <a href="http://cwe.mitre.org/data/definitions/416. A context-dependent attackers can have unspecified impact.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.
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
- http://www.securityfocus.com/bid/94924
- http://www.talosintelligence.com/reports/TALOS-2016-0037/
- https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog
- https://github.com/Matroska-Org/libebml/commit/88409e2a94dd3b40ff81d08bf6d92f486d036b24