CVE-2020-6809
Published: 10 March 2020
When a Web Extension had the all-urls permission and made a fetch request with a mode set to 'same-origin', it was possible for the Web Extension to read local files. This vulnerability affects Firefox < 74.
Notes
| Author | Note |
|---|---|
| tyhicks |
mozjs contains a copy of the SpiderMonkey JavaScript engine |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox
Launchpad, Ubuntu, Debian |
bionic |
Released
(74.0+build3-0ubuntu0.18.04.1)
|
| eoan |
Released
(74.0+build3-0ubuntu0.19.10.1)
|
|
| focal |
Released
(74.0+build3-0ubuntu1)
|
|
| groovy |
Released
(74.0+build3-0ubuntu1)
|
|
| hirsute |
Released
(74.0+build3-0ubuntu1)
|
|
| impish |
Released
(74.0+build3-0ubuntu1)
|
|
| jammy |
Released
(74.0+build3-0ubuntu1)
|
|
| kinetic |
Released
(74.0+build3-0ubuntu1)
|
|
| lunar |
Released
(74.0+build3-0ubuntu1)
|
|
| mantic |
Released
(74.0+build3-0ubuntu1)
|
|
| noble |
Released
(74.0+build3-0ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(74.0)
|
|
| xenial |
Released
(74.0+build3-0ubuntu0.16.04.1)
|
|
|
mozjs38
Launchpad, Ubuntu, Debian |
bionic |
Ignored
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Ignored
|
|
| xenial |
Does not exist
|
|
|
mozjs52
Launchpad, Ubuntu, Debian |
bionic |
Ignored
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Ignored
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Ignored
|
|
| xenial |
Does not exist
|
|
|
mozjs60
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Ignored
|
|
| xenial |
Does not exist
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |