PT-2016-5224 · Mozilla+5 · Firefox Esr+6

Firehack0R · Published 2016-06-07 · Updated 2024-12-12 · CVE-2016-2821

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Mozilla Firefox versions prior to 47.0 Mozilla Firefox ESR 45.x versions prior to 45.2

Description The issue is related to a use-after-free vulnerability in the mozilla::dom::Element class. This occurs when contenteditable mode is enabled, allowing remote attackers to execute arbitrary code or cause a denial of service due to heap memory corruption. The vulnerability is triggered by the deletion of DOM elements that were created in the editor.

Recommendations For Mozilla Firefox versions prior to 47.0, update to version 47.0 or later. For Mozilla Firefox ESR 45.x versions prior to 45.2, update to version 45.2 or later.

Fix

Related Identifiers

ALT-PU-2016-1630

ALT-PU-2017-1578

CESA-2016_1217

CVE-2016-2821

DLA-521-1

DSA-3600-1

MGASA-2016-0220

OPENSUSE-SU-2016_1552-1

OPENSUSE-SU-2016_1557-1

OPENSUSE-SU-2024:10071-1

OPENSUSE-SU-2024:14572-1

RHSA-2016:1217

RHSA-2016_1217

SUSE-SU-2016:1691-1

SUSE-SU-2016:1799-1

SUSE-SU-2016:2061-1

USN-2993-1

Affected Products

Alt Linux

Centos

Firefox

Firefox Esr

Red Hat

Suse

Ubuntu

References · 2124

• https://osv.dev/vulnerability/openSUSE-SU-2024:14572-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-2821 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2016-51 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2818 · Vendor Advisory
• https://mozilla.org/en-US/security/known-vulnerabilities/firefox-esr · Vendor Advisory
• https://advisories.mageia.org/MGASA-2016-0220.html · Security Note
• https://ubuntu.com/security/CVE-2016-2822 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2819 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2831 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10071-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-2821 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-2828 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00055.html · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2016-58 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:1691-1 · Vendor Advisory