CVE-2021-21779
Published: 8 July 2021
A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.
Priority
Medium
CVSS 3 base score: 8.8
Status
| Package | Release | Status |
|---|---|---|
|
qtwebkit-opensource-src Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Needs triage
|
|
| jammy |
Needs triage
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
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
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Ignored
(end of standard support, was needs-triage)
|
|
|
webkit2gtk Launchpad, Ubuntu, Debian |
bionic |
Released
(2.32.3-0ubuntu0.18.04.1)
|
| focal |
Released
(2.32.3-0ubuntu0.20.04.1)
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Released
(2.32.3-0ubuntu0.21.04.1)
|
|
| impish |
Released
(2.32.3-1ubuntu1)
|
|
| jammy |
Released
(2.32.3-1ubuntu1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.32.3)
|
|
| xenial |
Deferred
|
|
|
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
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Ignored
(end of standard support, was needs-triage)
|
|
|
wpewebkit Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Needs triage
|
|
| jammy |
Needs triage
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
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 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21779
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238
- https://ubuntu.com/security/notices/USN-5024-1
- NVD
- Launchpad
- Debian