CVE-2016-2821 Information

Description

Use-after-free vulnerability in the mozilla::dom::Element class in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 when contenteditable mode is enabled allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) by triggering deletion of DOM elements that were created in the editor.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00014.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00016.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00055.html http://www.debian.org/security/2016/dsa-3600 http://www.mozilla.org/security/announce/2016/mfsa2016-51.html http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html http://www.securityfocus.com/bid/91075 http://www.securitytracker.com/id/1036057 http://www.ubuntu.com/usn/USN-2993-1 https://access.redhat.com/errata/RHSA-2016:1217 https://bugzilla.mozilla.org/show_bug.cgi?id=1271460

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.5