CVE-2020-6793
Publication date 2 March 2020
Last updated 25 August 2025
Ubuntu priority
Description
When processing an email message with an ill-formed envelope, Thunderbird could read data from a random memory location. This vulnerability affects Thunderbird < 68.5.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| thunderbird | ||
| 18.04 LTS bionic |
Fixed 1:68.7.0+build1-0ubuntu0.18.04.1
|
|
| 16.04 LTS xenial |
Fixed 1:68.7.0+build1-0ubuntu0.16.04.2
|
|
| 14.04 LTS trusty | Not in release |
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-4328-1
- Thunderbird vulnerabilities
- 13 April 2020
- USN-4335-1
- Thunderbird vulnerabilities
- 21 April 2020