Vulnerability CVE-2015-8790
Published: 2016-01-29

Description:
The EbmlUnicodeString::UpdateFromUTF8 function in libEBML before 1.3.3 allows context-dependent attackers to obtain sensitive information from process heap memory via a crafted UTF-8 string, which triggers an invalid memory access.

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
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/85307
http://www.securityfocus.com/bid/95124
http://www.talosintelligence.com/reports/TALOS-2016-0036/
https://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog
https://github.com/Matroska-Org/libebml/commit/ababb64e0c792ad2a314245233db0833ba12036b
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