Vulnerability CVE-2015-8789
Published: 2016-01-29

Description:
Use-after-free vulnerability in the EbmlMaster::Read function in libEBML before 1.3.3 allows context-dependent attackers to have unspecified impact via a "deeply nested element with infinite size" followed by another element of an upper level in an EBML document.

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Matroska -> Libebml 

 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
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