Vulnerability identifier: #VU32312
Vulnerability risk: High
CVSSv3.1: 8.3 [AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-416
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
libebml
Other software /
Other software solutions
Vendor: www.matroska.org
Description
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.
Mitigation
Update to version 1.3.3.
Vulnerable software versions
libebml: 1.3.0
External links
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/
http://github.com/Matroska-Org/libebml/blob/release-1.3.3/ChangeLog
http://github.com/Matroska-Org/libebml/commit/88409e2a94dd3b40ff81d08bf6d92f486d036b24
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.