CVE-2020-27918
Published: 26 March 2021
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, Safari 14.0.1, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.
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 |
kinetic |
Ignored
(end of life, was needs-triage)
|
bionic |
Needs triage
|
|
focal |
Needs triage
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Ignored
(end of life)
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Needs triage
|
|
impish |
Ignored
(end of life)
|
|
jammy |
Needs triage
|
|
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
|
|
xenial |
Needs triage
|
|
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
|
|
mantic |
Does not exist
|
|
webkit2gtk Launchpad, Ubuntu, Debian |
xenial |
Deferred
|
bionic |
Released
(2.30.6-0ubuntu0.18.04.1)
|
|
focal |
Released
(2.30.6-0ubuntu0.20.04.1)
|
|
groovy |
Released
(2.30.6-0ubuntu0.20.10.1)
|
|
hirsute |
Released
(2.32.0-1ubuntu3)
|
|
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)
|
|
mantic |
Released
(2.32.0-1ubuntu3)
|
|
webkitgtk Launchpad, Ubuntu, Debian |
xenial |
Needs triage
|
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
|
|
mantic |
Does not exist
|
|
wpewebkit Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
focal |
Needs triage
|
|
groovy |
Ignored
(end of life)
|
|
hirsute |
Ignored
(end of life)
|
|
impish |
Ignored
(end of life)
|
|
jammy |
Needs triage
|
|
kinetic |
Does not exist
|
|
lunar |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
xenial |
Does not exist
|
|
mantic |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |