CVE-2023-42950: Use After Free

Published 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.

Other sources

Accessibility. A privacy issue was addressed with improved private data redaction for log entries.

— Apple

Accessibility. This issue was addressed with improved state management.

— Apple

Accounts. A privacy issue was addressed with improved private data redaction for log entries.

— Apple

AppleEvents. This issue was addressed with improved redaction of sensitive information.

— Apple

AppleGraphicsControl. Multiple memory corruption issues were addressed with improved input validation.

— Apple

Credit

Mickey Jin@@patch1t, an anonymous researcher, Marc Newlin(SkySafe), Koh M. Nakagawa@@tsunek0h, CVE-2023-38545, CVE-2023-38039, CVE-2023-38546, Yann GASCUEL(Alter Solutions), Anthony Cruz Tyrant Corp@@App, Wojciech Regula(SecuRing), Zhenjiang Zhao(Pangu Team), Qianxin, Junsung Lee, Meysam Firouzi@@R00tkitSMM, Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), Pan ZhenPeng@@Peterpan0927(STAR Labs SG Pte), Eloi Benoist-Vanderbeken@@elvanderb(Synacktiv), CVE-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(BreakPoint), Csaba Fitzl@@theevilbit(OffSec), Csaba Fitzl@@theevilbit(Offensive Security), Arsenii Kostromin (0x3c3e), Mattie Behrens, Joshua Jewett@@JoshJewett33, Zhongquan Li@@Guluisacat, Zhongquan Li@@Guluisacat(Dawn Security Lab of JingDong), CVE-2023-5344, Pwn2car, Zoom Offensive Security Team, Nan Wang@@eternalsakura13(360 Vulnerability Research Institute), rushikesh nandedkar, SungKwon Lee (Demon.Team), Noah Roskin-Frazee, Pr, Ivan Fratric(Google Project Zero), (Trend Micro Zero Day Initiative), Don Clarke, Kirin@@Pwnrin, Clément Lecigne(Google's Threat Analysis Group), rushikesh nandedka, Christopher Reynolds, Aymane Chabat, ARJUN S D, Andrew Goldberg(The McCombs School of Business), The University(Texas at Austin), Apple

Affected Software

15 affected componentsFixes available
Apple macOS Sonoma<14.2
14.2
Apple tvOS<17.2
17.2
Apple WatchOS<10.2
10.2
Apple Safari<17.2
17.2
Apple iOS<17.2
17.2
Apple iPadOS<17.2
17.2
redhat/webkitgtk<2.44.0
2.44.0
Apple Safari<17.2
Apple iPadOS<17.2
Apple iPhone OS<17.2
Apple macOS>=14.0<14.2
Apple tvOS<17.2
Apple WatchOS<10.2
debian/webkit2gtk
2.50.6-1~deb12u22.50.6-1~deb12u12.52.6-1~deb13u12.54.0-1~deb13u32.52.6-12.54.2-2
debian/wpewebkit<=2.38.6-1
2.48.3-12.54.2-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apple macOS to a version that resolves this vulnerability.

    Fixed in 14.2
  2. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 17.2
  3. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 10.2
  4. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 17.2
  5. Upgrade

    Upgrade Apple iOS and iPadOS to a version that resolves this vulnerability.

    Fixed in 17.2
  6. Upgrade

    Upgrade Apple iOS, iPadOS, and macOS to a version that resolves this vulnerability.

    Fixed in 17.2
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.2
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 17.2
  9. Upgrade

    Upgrade redhat/WebKitGTK to a version that resolves this vulnerability.

    Fixed in 2.44.0
  10. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 14.2
  11. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.50.6-1~deb12u2Fixed in 2.50.6-1~deb12u1Fixed in 2.52.6-1~deb13u1Fixed in 2.54.0-1~deb13u3Fixed in 2.52.6-1Fixed in 2.54.2-2
  12. Upgrade

    Upgrade debian/wpewebkit to a version that resolves this vulnerability.

    Fixed in 2.48.3-1Fixed in 2.54.2-1
  13. Upgrade

    Upgrade curl to a version that resolves this vulnerability.

    Fixed in 8.4.0
  14. Upgrade

    Upgrade Vim to a version that resolves this vulnerability.

    Fixed in 9.0.1969
  15. Upgrade

    Upgrade WebKitGTK to a version that resolves this vulnerability.

    Fixed in 2.44.0
  16. Upgrade

    Upgrade WPE WebKit to a version that resolves this vulnerability.

    Fixed in 2.44.0
  17. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 17.2
  18. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 17.2
  19. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 10.2
  20. Upgrade

    Upgrade macOS Sonoma to a version that resolves this vulnerability.

    Fixed in 14.2

Event History

Dec 11, 2023
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Mar 27, 2024
Data Sourced
via Red Hat·03:23 AM
DescriptionSeverityAffected Software
Mar 28, 2024
CVE Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
CVE Published
via MITRE·03:39 PM
Data Sourced
via MITRE·03:39 PM
DescriptionWeakness
Data Sourced
via NVD·04:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·04:15 PM
DescriptionSeverity

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

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.

2

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.

3

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.

4

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.

5

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

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