CVE-2023-42950: Use After Free
First published: Mon Dec 11 2023(Updated: )
A use after free issue was addressed with improved memory management. This issue is fixed in Safari 17.2, iOS 17.2 and iPadOS 17.2, tvOS 17.2, watchOS 10.2, macOS Sonoma 14.2. Processing maliciously crafted web content may lead to arbitrary code execution.
Credit: product-security@apple.com Noah Roskin-Frazee Pr Ivan Fratric Google Project Zero Trend Micro Zero Day InitiativeMichael DePlante @izobashi Trend Micro Zero Day InitiativeMickey Jin @patch1t an anonymous researcher Marc Newlin SkySafeKoh M. Nakagawa @tsunek0h CVE-2023-38545 CVE-2023-38039 CVE-2023-38546 Yann GASCUEL Alter SolutionsAnthony Cruz Tyrant Corp @App Wojciech Regula SecuRingZhenjiang Zhao Pangu TeamQianxin Junsung Lee Meysam Firouzi @R00tkitSMM Pan ZhenPeng @Peterpan0927 STAR Labs SG PteEloi Benoist-Vanderbeken @elvanderb SynacktivCVE-2023-42893 CVE-2023-3618 CVE-2020-19185 CVE-2020-19186 CVE-2020-19187 CVE-2020-19188 CVE-2020-19189 CVE-2020-19190 Ron Masas BreakPointCsaba Fitzl @theevilbit OffSecCsaba Fitzl @theevilbit Offensive SecurityArsenii Kostromin (0x3c3e) Mattie Behrens Joshua Jewett @JoshJewett33 Zhongquan Li @Guluisacat Zhongquan Li @Guluisacat Dawn Security Lab of JingDongCVE-2023-5344 Pwn2car Zoom Offensive Security Team Nan Wang @eternalsakura13 360 Vulnerability Research Instituterushikesh nandedkar SungKwon Lee (Demon.Team) Kirin @Pwnrin Don Clarke
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/webkit2gtk | <2.44.0-0ubuntu0.22.04.1 | 2.44.0-0ubuntu0.22.04.1 |
| ubuntu/webkit2gtk | <2.44.0-0ubuntu0.23.10.1 | 2.44.0-0ubuntu0.23.10.1 |
| ubuntu/webkit2gtk | <2.44.0 | 2.44.0 |
| debian/webkit2gtk | <=2.36.4-1~deb10u1<=2.38.6-0+deb10u1<=2.42.2-1~deb11u1<=2.42.2-1~deb12u1 | 2.44.1-1~deb11u1 2.44.1-1~deb12u1 2.44.1-1 |
| debian/wpewebkit | <=2.38.6-1~deb11u1<=2.38.6-1 | 2.44.1-1 |
| redhat/WebKitGTK | <2.44.0 | 2.44.0 |
| Apple macOS | <14.2 | 14.2 |
| tvOS | <17.2 | 17.2 |
| Apple Mobile Safari | <17.2 | 17.2 |
| Apple iOS, iPadOS, and watchOS | <17.2 | 17.2 |
| Apple iOS, iPadOS, and watchOS | <17.2 | 17.2 |
| Apple iOS, iPadOS, and watchOS | <10.2 | 10.2 |
| Apple Mobile Safari | <17.2 | |
| Apple iOS, iPadOS, and watchOS | <17.2 | |
| iStyle @cosme iPhone OS | <17.2 | |
| Apple iOS and macOS | >=14.0<14.2 | |
| tvOS | <17.2 | |
| Apple iOS, iPadOS, and watchOS | <10.2 |
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Reference Links
- https://support.apple.com/en-us/HT214039 (Advisory)
- https://webkitgtk.org/security/WSA-2024-0002.html
- https://www.cve.org/CVERecord?id=CVE-2023-42950
- https://ubuntu.com/security/notices/USN-6732-1
- https://nvd.nist.gov/vuln/detail/CVE-2023-42950
- https://launchpad.net/bugs/cve/CVE-2023-42950
- https://security-tracker.debian.org/tracker/CVE-2023-42950
- https://ubuntu.com/security/CVE-2023-42950
- https://support.apple.com/en-us/HT214035 (Advisory)
- https://support.apple.com/en-us/HT214036 (Advisory)
- https://support.apple.com/en-us/HT214040 (Advisory)
- https://support.apple.com/en-us/HT214041 (Advisory)
- https://support.apple.com/kb/HT214039
- http://www.openwall.com/lists/oss-security/2024/03/26/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IXLXIOAH5S7J22LJTCIAVFVVJ4TESAX4/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2271720
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2274441
- https://access.redhat.com/errata/RHSA-2024:9144
- https://bugzilla.redhat.com/show_bug.cgi?id=2271718
- https://support.apple.com/kb/HT214036
- https://support.apple.com/en-us/120879 (Advisory)
Parent vulnerabilities
(Appears in the following advisories)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2023-42874
- CVE-2023-42937
- CVE-2023-42919
- CVE-2023-42894
- CVE-2023-42901
- CVE-2023-42902
- CVE-2023-42912
- CVE-2023-42903
- CVE-2023-42904
- CVE-2023-42905
- CVE-2023-42906
- CVE-2023-42907
- CVE-2023-42908
- CVE-2023-42909
- CVE-2023-42910
- CVE-2023-42911
- CVE-2023-42926
- CVE-2023-42882
- CVE-2023-42881
- CVE-2023-42924
- CVE-2023-42896
- CVE-2023-42884
- CVE-2023-45866
- CVE-2023-42900
- CVE-2023-42886
- CVE-2023-38545
- CVE-2023-38039
- CVE-2023-38546
- CVE-2023-42931
- CVE-2023-42892
- CVE-2023-42922
- CVE-2023-42898
- CVE-2023-42899
- CVE-2023-42888
- CVE-2023-42891
- CVE-2023-42974
- CVE-2023-42914
- CVE-2023-42893
- CVE-2023-3618
- CVE-2020-19185
- CVE-2020-19186
- CVE-2020-19187
- CVE-2020-19188
- CVE-2020-19189
- CVE-2020-19190
- CVE-2023-42887
- CVE-2023-42936
- CVE-2023-40390
- CVE-2023-42842
- CVE-2023-42930
- CVE-2023-42913
- CVE-2023-42932
- CVE-2023-42947
- CVE-2023-40389
- CVE-2023-5344
- CVE-2023-42890
- CVE-2023-42883
- CVE-2023-42950
- CVE-2023-42956
- CVE-2023-42916
- CVE-2023-42917
- CVE-2023-42941
- CVE-2023-42962
- CVE-2023-42923
- CVE-2023-42897
Frequently Asked Questions
What is the severity of CVE-2023-42950?
CVE-2023-42950 is classified as a critical vulnerability due to its potential to allow arbitrary code execution.
How do I fix CVE-2023-42950?
To fix CVE-2023-42950, update Safari or the affected WebKit packages to their latest versions as specified by your vendor.
Which versions are affected by CVE-2023-42950?
CVE-2023-42950 affects Safari prior to version 17.2 and several versions of WebKitGTK and WPEWebKit.
What platforms are impacted by CVE-2023-42950?
CVE-2023-42950 impacts multiple Apple platforms including iOS, iPadOS, macOS, tvOS, and watchOS, as well as certain Ubuntu and Debian packages.
What does CVE-2023-42950 exploit?
CVE-2023-42950 exploits a use after free vulnerability in WebKit that can be triggered through maliciously crafted web content.
- agent/first-publish-date
- agent/type
- collector/usn-cve
- source/Ubuntu
- agent/software-canonical-lookup
- collector/launchpad-cve
- source/Launchpad
- agent/event
- collector/security-tracker-debian
- source/Debian
- collector/mitre-cve
- source/MITRE
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2023-42950
- agent/last-modified-date
- agent/severity
- agent/trending
- agent/source
- collector/apple-support
- source/Apple
- agent/software-canonical-lookup-request
- alias/CVE-2023-42901
- alias/CVE-2023-42902
- alias/CVE-2023-42912
- alias/CVE-2023-42903
- alias/CVE-2023-42904
- alias/CVE-2023-42905
- alias/CVE-2023-42906
- alias/CVE-2023-42907
- alias/CVE-2023-42908
- alias/CVE-2023-42909
- alias/CVE-2023-42910
- alias/CVE-2023-42911
- alias/CVE-2023-42926
- alias/CVE-2023-42882
- alias/CVE-2023-42881
- alias/CVE-2023-42924
- alias/CVE-2023-42896
- alias/CVE-2023-42884
- alias/CVE-2023-45866
- alias/CVE-2023-42900
- alias/CVE-2023-42886
- alias/CVE-2023-38545
- alias/CVE-2023-38039
- alias/CVE-2023-38546
- alias/CVE-2023-42931
- alias/CVE-2023-42892
- alias/CVE-2023-42922
- alias/CVE-2023-42898
- alias/CVE-2023-42899
- alias/CVE-2023-42888
- alias/CVE-2023-42891
- alias/CVE-2023-42974
- alias/CVE-2023-42914
- alias/CVE-2023-42893
- alias/CVE-2023-3618
- alias/CVE-2020-19185
- alias/CVE-2020-19186
- alias/CVE-2020-19187
- alias/CVE-2020-19188
- alias/CVE-2020-19189
- alias/CVE-2020-19190
- alias/CVE-2023-42887
- alias/CVE-2023-42936
- alias/CVE-2023-40390
- alias/CVE-2023-42842
- alias/CVE-2023-42930
- alias/CVE-2023-42913
- alias/CVE-2023-42932
- alias/CVE-2023-42947
- alias/CVE-2023-40389
- alias/CVE-2023-5344
- alias/CVE-2023-42890
- alias/CVE-2023-42883
- alias/CVE-2023-42956
- alias/CVE-2023-42919
- alias/CVE-2023-42894
- alias/CVE-2023-42937
- agent/author
- agent/weakness
- agent/references
- agent/description
- agent/softwarecombine
- agent/tags
- collector/nvd-api
- source/NVD
- collector/nvd-cve
- package-manager/ubuntu
- package-manager/debian
- package-manager/redhat
- vendor/apple
- canonical/apple macos
- canonical/tvos
- canonical/apple mobile safari
- canonical/apple ios, ipados, and watchos
- canonical/istyle @cosme iphone os
- canonical/apple ios and macos
- version/apple ios and macos/14.0