CVE-2021-29952
Published: 7 May 2021
When Web Render components were destructed, a race condition could have caused undefined behavior, and we presume that with enough effort may have been exploitable to run arbitrary code. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.
Notes
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
firefox Launchpad, Ubuntu, Debian |
impish |
Released
(88.0.1+build1-0ubuntu2)
|
| jammy |
Released
(88.0.1+build1-0ubuntu2)
|
|
| lunar |
Released
(88.0.1+build1-0ubuntu2)
|
|
| bionic |
Released
(88.0.1+build1-0ubuntu0.18.04.2)
|
|
| trusty |
Does not exist
|
|
| xenial |
Ignored
(end of standard support, was needed)
|
|
| focal |
Released
(88.0.1+build1-0ubuntu0.20.04.2)
|
|
| groovy |
Released
(88.0.1+build1-0ubuntu0.20.10.2)
|
|
| hirsute |
Released
(88.0.1+build1-0ubuntu0.21.04.2)
|
|
| upstream |
Released
(88.0.1)
|
|
| kinetic |
Released
(88.0.1+build1-0ubuntu2)
|
|
| mantic |
Released
(88.0.1+build1-0ubuntu2)
|
|
|
mozjs38 Launchpad, Ubuntu, Debian |
jammy |
Does not exist
|
| lunar |
Does not exist
|
|
| xenial |
Does not exist
|
|
| impish |
Does not exist
|
|
| bionic |
Needs triage
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| kinetic |
Does not exist
|
|
| mantic |
Does not exist
|
|
|
mozjs52 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Does not exist
|
|
| jammy |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| impish |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| mantic |
Does not exist
|
|
|
mozjs68 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Does not exist
|
|
| jammy |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| impish |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| mantic |
Does not exist
|
|
|
mozjs78 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Needs triage
|
|
| lunar |
Needs triage
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| mantic |
Does not exist
|
|
|
thunderbird Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| focal |
Not vulnerable
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Not vulnerable
|
|
| jammy |
Not vulnerable
|
|
| lunar |
Not vulnerable
|
|
| trusty |
Does not exist
|
|
| upstream |
Not vulnerable
|
|
| xenial |
Not vulnerable
|
|
| impish |
Not vulnerable
|
|
| kinetic |
Not vulnerable
|
|
| mantic |
Not vulnerable
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |