CVE-2017-5447
Published: 20 April 2017
An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
precise |
Ignored
|
| trusty |
Released
(53.0+build6-0ubuntu0.14.04.1)
|
|
| upstream |
Released
(53.0)
|
|
| xenial |
Released
(53.0+build6-0ubuntu0.16.04.1)
|
|
| yakkety |
Released
(53.0+build6-0ubuntu0.16.10.1)
|
|
| zesty |
Released
(53.0+build6-0ubuntu0.17.04.1)
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
precise |
Ignored
(end of life)
|
| trusty |
Released
(1:52.1.1+build1-0ubuntu0.14.04.1)
|
|
| upstream |
Released
(52.1.1)
|
|
| xenial |
Released
(1:52.1.1+build1-0ubuntu0.16.04.1)
|
|
| yakkety |
Released
(1:52.1.1+build1-0ubuntu0.16.10.1)
|
|
| zesty |
Released
(1:52.1.1+build1-0ubuntu0.17.04.1)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.1 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |