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CVE-2022-42856

Published: 4 January 2023

A type confusion issue was addressed with improved state handling. This issue is fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.1.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.1..

Notes

AuthorNote
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

Medium

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
qtwebkit-opensource-src
Launchpad, Ubuntu, Debian
bionic Ignored

focal Ignored

jammy Ignored

kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needs-triage)
mantic Ignored

noble Ignored

trusty Ignored
(end of standard support)
upstream Ignored

xenial Ignored

qtwebkit-source
Launchpad, Ubuntu, Debian
bionic Ignored

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Ignored

webkit2gtk
Launchpad, Ubuntu, Debian
bionic Ignored

focal
Released (2.38.3-0ubuntu0.20.04.1)
jammy
Released (2.38.3-0ubuntu0.22.04.1)
kinetic
Released (2.38.3-0ubuntu0.22.10.1)
lunar
Released (2.38.3-1)
mantic
Released (2.38.3-1)
noble
Released (2.38.3-1)
trusty Does not exist

upstream
Released (2.38.3)
xenial Ignored

webkitgtk
Launchpad, Ubuntu, Debian
bionic Ignored

focal Does not exist

jammy Does not exist

kinetic Does not exist

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Ignored

wpewebkit
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored

jammy Ignored

kinetic Does not exist

trusty Ignored
(end of standard support)
upstream Needs triage

xenial 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