CVE-2021-43528
Published: 8 December 2021
Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.
Priority
Status
Package | Release | Status |
---|---|---|
thunderbird Launchpad, Ubuntu, Debian |
bionic |
Released
(1:91.5.0+build1-0ubuntu0.18.04.1)
|
focal |
Released
(1:91.5.0+build1-0ubuntu0.20.04.1)
|
|
hirsute |
Ignored
(end of life)
|
|
impish |
Released
(1:91.5.0+build1-0ubuntu0.21.10.1)
|
|
kinetic |
Released
(1:91.4.0+build1-0ubuntu1)
|
|
lunar |
Released
(1:91.4.0+build1-0ubuntu1)
|
|
trusty |
Ignored
(end of standard support)
|
|
upstream |
Released
(91.4)
|
|
xenial |
Ignored
(end of standard support)
|
|
jammy |
Released
(1:91.4.0+build1-0ubuntu1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | High |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |