CVE-2016-2821

Severity

68%

Complexity

86%

Confidentiality

106%

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.

CWE-416: Use After Free

CVSS 3.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 6.8. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P).

Overview

First reported 8 years ago

2016-06-13 10:59:00

Last updated 6 years ago

2018-10-30 16:27:00

Affected Software

Mozilla Firefox

Mozilla Firefox Extended Support Release (ESR) 45.1.0

45.1.0

Mozilla Firefox Extended Support Release (ESR) 45.1.1

45.1.1

Debian Linux 8.0 (Jessie)

8.0

openSUSE Leap 42.1

42.1

OpenSUSE 13.1

13.1

OpenSUSE 13.2

13.2

Canonical Ubuntu Linux 12.04 LTS

12.04

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Canonical Ubuntu Linux 15.10

15.10

Canonical Ubuntu Linux 16.04 LTS (Long-Term Support)

16.04

References

openSUSE-SU-2016:1552

openSUSE-SU-2016:1557

SUSE-SU-2016:1691

DSA-3600

http://www.mozilla.org/security/announce/2016/mfsa2016-51.html

Vendor Advisory

http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

91075

1036057

USN-2993-1

RHSA-2016:1217

https://bugzilla.mozilla.org/show_bug.cgi?id=1271460

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