CVE-2022-26386
Publication date 9 March 2022
Last updated 25 August 2025
Ubuntu priority
Description
Previously Firefox for macOS and Linux would download temporary files to a user-specific directory in <code>/tmp</code>, but this behavior was changed to download them to <code>/tmp</code> where they could be affected by other local users. This behavior was reverted to the original, user-specific directory. <br>*This bug only affects Firefox for macOS and Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 91.7 and Thunderbird < 91.7.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| thunderbird | ||
| 22.04 LTS jammy |
Fixed 1:91.7.0+build2-0ubuntu1
|
|
| 20.04 LTS focal |
Fixed 1:91.7.0+build2-0ubuntu0.20.04.1
|
|
| 18.04 LTS bionic |
Fixed 1:91.7.0+build2-0ubuntu0.18.04.1
|
|
| 16.04 LTS xenial | Ignored end of standard support | |
| 14.04 LTS trusty | Not in release | |
| firefox-esr | 16.04 LTS xenial | Ignored end of standard support |
| 14.04 LTS trusty | Ignored end of standard support |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.5 · Medium
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-5345-1
- Thunderbird vulnerabilities
- 23 March 2022