CVE-2020-6797
Published: 2 March 2020
By downloading a file with the .fileloc extension, a semi-privileged extension could launch an arbitrary application on the user's computer. The attacker is restricted as they are unable to download non-quarantined files or supply command line arguments to the application, limiting the impact. Note: this issue only occurs on Mac OSX. Other operating systems are unaffected. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
Notes
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
| mdeslaur | OSX only |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(Mac OSX only)
|
| eoan |
Not vulnerable
(Mac OSX only)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(73.0)
|
|
| xenial |
Not vulnerable
(Mac OSX only)
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(Mac OSX only)
|
| eoan |
Not vulnerable
(Mac OSX only)
|
|
| trusty |
Does not exist
|
|
| upstream |
Not vulnerable
(debian: Only affects Mac OSX)
|
|
| xenial |
Not vulnerable
(Mac OSX only)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 4.3 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |