CVE-2015-8789 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.6