CVE-2016-2821
Published: 8 June 2016
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
precise |
Released
(47.0+build3-0ubuntu0.12.04.1)
|
| trusty |
Released
(47.0+build3-0ubuntu0.14.04.1)
|
|
| upstream |
Released
(47.0)
|
|
| wily |
Released
(47.0+build3-0ubuntu0.15.10.1)
|
|
| xenial |
Released
(47.0+build3-0ubuntu0.16.04.1)
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
| trusty |
Does not exist
(trusty was not-affected)
|
|
| upstream |
Not vulnerable
|
|
| wily |
Not vulnerable
|
|
| xenial |
Not vulnerable
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |