CVE-2017-7828
Published: 15 November 2017
A use-after-free vulnerability can occur when flushing and resizing layout because the "PressShell" object has been freed while still in use. This results in a potentially exploitable crash during these operations. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox
Launchpad, Ubuntu, Debian |
artful |
Released
(57.0+build4-0ubuntu0.17.10.5)
|
| bionic |
Released
(57.0.1+build2-0ubuntu1)
|
|
| trusty |
Released
(57.0+build4-0ubuntu0.14.04.4)
|
|
| upstream |
Released
(57.0)
|
|
| xenial |
Released
(57.0+build4-0ubuntu0.16.04.5)
|
|
| zesty |
Released
(57.0+build4-0ubuntu0.17.04.5)
|
|
|
thunderbird
Launchpad, Ubuntu, Debian |
artful |
Released
(1:52.5.0+build1-0ubuntu0.17.10.1)
|
| bionic |
Released
(1:52.6.0+build1-0ubuntu1)
|
|
| trusty |
Released
(1:52.5.0+build1-0ubuntu0.14.04.1)
|
|
| upstream |
Released
(52.5.0)
|
|
| xenial |
Released
(1:52.5.0+build1-0ubuntu0.16.04.1)
|
|
| zesty |
Released
(1:52.5.0+build1-0ubuntu0.14.04.1)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |