CVE-2022-28281
Publication date 6 April 2022
Last updated 25 August 2025
Ubuntu priority
Description
If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write would have occurred leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| firefox | ||
| 22.04 LTS jammy |
Fixed 1:1snap1-0ubuntu1
|
|
| 20.04 LTS focal |
Fixed 99.0+build2-0ubuntu0.20.04.2
|
|
| 18.04 LTS bionic |
Fixed 99.0+build2-0ubuntu0.18.04.2
|
|
| 16.04 LTS xenial | Ignored end of standard support | |
| 14.04 LTS trusty | Not in release | |
| thunderbird | ||
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Fixed 1:91.8.1+build1-0ubuntu0.20.04.1
|
|
| 18.04 LTS bionic |
Fixed 1:91.8.1+build1-0ubuntu0.18.04.1
|
|
| 16.04 LTS xenial | Ignored end of standard support | |
| 14.04 LTS trusty | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
8.8 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-5370-1
- Firefox vulnerabilities
- 7 April 2022
- USN-5393-1
- Thunderbird vulnerabilities
- 27 April 2022