CVE-2021-38495
Published: 3 November 2021
Mozilla developers reported memory safety bugs present in Thunderbird 78.13.0. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 91.1 and Firefox ESR < 91.1.
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 |
Not vulnerable
(1:91.1.2+build1-0ubuntu1)
|
|
jammy |
Not vulnerable
(1:91.1.2+build1-0ubuntu1)
|
|
kinetic |
Not vulnerable
(1:91.1.2+build1-0ubuntu1)
|
|
lunar |
Not vulnerable
(1:91.1.2+build1-0ubuntu1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(91.1)
|
|
xenial |
Ignored
(end of standard support)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.8 |
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 |