high
8.8
CWE
416 20 362
Advisory Published
CVE Published
CVE Published
Updated

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 Kirin @Pwnrin Mickey Jin @patch1t an anonymous researcher Marc Newlin SkySafeChristopher Reynolds Aymane Chabat Wojciech Regula SecuRingZhenjiang Zhao Pangu TeamQianxin Junsung Lee Meysam Firouzi @R00tkitSMM Michael DePlante @izobashi Trend Micro Zero Day InitiativePan ZhenPeng @Peterpan0927 STAR Labs SG PteEloi Benoist-Vanderbeken @elvanderb SynacktivCVE-2023-42893 ARJUN S D Csaba Fitzl @theevilbit OffSecAndrew Goldberg The McCombs School of BusinessThe University Texas at AustinZhongquan Li @Guluisacat Dawn Security Lab of JingDongCsaba Fitzl @theevilbit Offensive SecurityJoshua Jewett @JoshJewett33 Pwn2car Zoom Offensive Security Team Nan Wang @eternalsakura13 360 Vulnerability Research Instituterushikesh nandedkar SungKwon Lee (Demon.Team) Ivan Fratric Google Project Zero Trend Micro Zero Day InitiativeKoh M. Nakagawa @tsunek0h CVE-2023-38545 CVE-2023-38039 CVE-2023-38546 Yann GASCUEL Alter SolutionsAnthony Cruz Tyrant Corp @App CVE-2023-3618 CVE-2020-19185 CVE-2020-19186 CVE-2020-19187 CVE-2020-19188 CVE-2020-19189 CVE-2020-19190 Ron Masas BreakPointArsenii Kostromin (0x3c3e) Mattie Behrens Zhongquan Li @Guluisacat CVE-2023-5344 Don Clarke Clément Lecigne Google's Threat Analysis Grouprushikesh nandedka

Affected SoftwareAffected VersionHow 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 iOS, iPadOS, and watchOS<10.2
10.2
Safari<17.2
17.2
Apple iOS and iPadOS<17.2
17.2
Apple iOS, iPadOS, and macOS<17.2
17.2
Safari<17.2
Apple iOS, iPadOS, and macOS<17.2
iPhone OS<17.2
macOS>=14.0<14.2
tvOS<17.2
Apple iOS, iPadOS, and watchOS<10.2

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

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.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203