CVE-2020-15669
Published: 1 October 2020
When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12.
Priority
Status
Package | Release | Status |
---|---|---|
thunderbird Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
hirsute |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
bionic |
Released
(1:78.8.1+build1-0ubuntu0.18.04.1)
|
|
focal |
Released
(78.7.1+build1-0ubuntu0.20.04.1)
|
|
groovy |
Not vulnerable
(1:78.3.2+build1-0ubuntu1)
|
|
impish |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
jammy |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
kinetic |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
lunar |
Not vulnerable
(1:78.4.3+build1-0ubuntu1)
|
|
upstream |
Released
(68.12)
|
|
xenial |
Ignored
(end of standard support, was needed)
|
|
firefox-esr Launchpad, Ubuntu, Debian |
impish |
Does not exist
|
trusty |
Does not exist
|
|
upstream |
Released
(68.12.0esr-1)
|
|
xenial |
Does not exist
|
|
bionic |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
hirsute |
Does not exist
|
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
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 |