CVE-2016-2821

HIGH

Firefox < 47.0 - Use-After-Free in Contenteditable DOM Element Deletion

Title source: llm
STIX 2.1

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.

References (11)

Core 11
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1036057
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2016:1217
Vendor Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2993-1
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/91075
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2016/dsa-3600
Issue Tracking x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1271460

Scores

CVSS v3 7.5
EPSS 0.0276
EPSS Percentile 86.2%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

Status published
Products (11)
canonical/ubuntu_linux 12.04
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 15.10
canonical/ubuntu_linux 16.04
debian/debian_linux 8.0
mozilla/firefox 45.1.0
mozilla/firefox 45.1.1
mozilla/firefox < 46.0.1
opensuse/leap 42.1
opensuse/opensuse 13.1
... and 1 more
Published Jun 13, 2016
Tracked Since Feb 18, 2026