CVE-2020-6830
Published: 26 May 2020
For native-to-JS bridging, the app requires a unique token to be passed that ensures non-app code can't call the bridging functions. That token was being used for JS-to-native also, but it isn't needed in this case, and its usage was also leaking this token. This vulnerability affects Firefox for iOS < 25.
Notes
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
| sbeattie | firefox on iOS only |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(iOS only)
|
| eoan |
Not vulnerable
(iOS only)
|
|
| focal |
Not vulnerable
(iOS only)
|
|
| trusty |
Does not exist
|
|
| upstream |
Not vulnerable
(debian: Firefox on iOS)
|
|
| xenial |
Not vulnerable
(iOS only)
|
|
|
mozjs38 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(iOS only)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Not vulnerable
(iOS only)
|
|
| xenial |
Does not exist
|
|
|
mozjs52 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(iOS only)
|
| eoan |
Not vulnerable
(iOS only)
|
|
| focal |
Not vulnerable
(iOS only)
|
|
| trusty |
Does not exist
|
|
| upstream |
Not vulnerable
(iOS only)
|
|
| xenial |
Does not exist
|
|
|
mozjs60 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Not vulnerable
(iOS only)
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Not vulnerable
(iOS only)
|
|
| xenial |
Does not exist
|
|
|
mozjs68 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Does not exist
|
|
| focal |
Not vulnerable
(iOS only)
|
|
| trusty |
Does not exist
|
|
| upstream |
Not vulnerable
(iOS only)
|
|
| xenial |
Does not exist
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(iOS only)
|
| eoan |
Not vulnerable
(iOS only)
|
|
| focal |
Not vulnerable
(iOS only)
|
|
| trusty |
Does not exist
|
|
| upstream |
Not vulnerable
(iOS only)
|
|
| xenial |
Not vulnerable
(iOS only)
|
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 |