CVE-2021-21806
Published: 8 July 2021
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
Notes
Author | Note |
---|---|
jdstrand | webkit receives limited support. For details, see https://wiki.ubuntu.com/SecurityTeam/FAQ#webkit webkit in Ubuntu uses the JavaScriptCore (JSC) engine, not V8 |
Priority
Status
Package | Release | Status |
---|---|---|
qtwebkit-opensource-src Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
focal |
Needs triage
|
|
jammy |
Needs triage
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Needs triage
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Ignored
(end of life)
|
|
kinetic |
Ignored
(end of life, was needs-triage)
|
|
impish |
Ignored
(end of life)
|
|
mantic |
Needs triage
|
|
lunar |
Ignored
(end of life, was needs-triage)
|
|
qtwebkit-source Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
hirsute |
Does not exist
|
|
impish |
Does not exist
|
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Needs triage
|
|
mantic |
Does not exist
|
|
webkit2gtk Launchpad, Ubuntu, Debian |
impish |
Released
(2.32.0-1ubuntu3)
|
jammy |
Released
(2.32.0-1ubuntu3)
|
|
kinetic |
Released
(2.32.0-1ubuntu3)
|
|
lunar |
Released
(2.32.0-1ubuntu3)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(2.30.6)
|
|
xenial |
Deferred
|
|
bionic |
Released
(2.30.6-0ubuntu0.18.04.1)
|
|
focal |
Released
(2.30.6-0ubuntu0.20.04.1)
|
|
hirsute |
Released
(2.32.0-1ubuntu3)
|
|
groovy |
Released
(2.30.6-0ubuntu0.20.10.1)
|
|
mantic |
Released
(2.32.0-1ubuntu3)
|
|
webkitgtk Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
hirsute |
Does not exist
|
|
impish |
Does not exist
|
|
jammy |
Does not exist
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Needs triage
|
|
mantic |
Does not exist
|
|
wpewebkit Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
focal |
Needs triage
|
|
jammy |
Needs triage
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Ignored
(end of life)
|
|
impish |
Ignored
(end of life)
|
|
mantic |
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 |