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01 Record

CVE-2023-42917

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may lead to

HighKEVPUBLISHEDCNA: apple
CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
View raw JSON

02 Description

A memory corruption vulnerability was addressed with improved locking. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may lead to

03 Exploitation and scoring

Exploitation
Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2023-12-04. Federal remediation due 2023-12-25.
SSVC decision
  • ExploitationactiveCISA reports credible evidence of active exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
9.29% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 95.1% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-11-30 22:18Z2 YR AGO
Last updated
2025-10-21 23:05Z1 YR AGO
Reserved
2023-09-14
Assigning CNA
apple
Record state
PUBLISHED
Severity
High (CVSS 8.8)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
Data version
5.1
Document digest
938be236a0f83c254d5d673fcb6af90a7ec4007d89a7750d8d53ceb741a92b51

05 Affected products

VendorProductVersionsPlatforms
AppleSafari< 17.1—
ApplemacOS< 14.1—
AppleiOS and iPadOS< 17.1—

06 References

07 Fixed in

AlmaLinux 8

  • webkit2gtk3
    Fixed in 2.40.5-1.el8_9.1.alma.1
  • webkit2gtk3-devel
    Fixed in 2.40.5-1.el8_9.1.alma.1
  • webkit2gtk3-jsc
    Fixed in 2.40.5-1.el8_9.1.alma.1
  • webkit2gtk3-jsc-devel
    Fixed in 2.40.5-1.el8_9.1.alma.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • webkit2gtk3
    Fixed in 2.40.5-1.el9_3.1
  • webkit2gtk3-devel
    Fixed in 2.40.5-1.el9_3.1
  • webkit2gtk3-jsc
    Fixed in 2.40.5-1.el9_3.1
  • webkit2gtk3-jsc-devel
    Fixed in 2.40.5-1.el9_3.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • webkit2gtk3
    Fixed in 2.40.5-1.el8_9.1.alma.1
  • webkit2gtk3-devel
    Fixed in 2.40.5-1.el8_9.1.alma.1
  • webkit2gtk3-jsc
    Fixed in 2.40.5-1.el8_9.1.alma.1
  • webkit2gtk3-jsc-devel
    Fixed in 2.40.5-1.el8_9.1.alma.1

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • webkit2gtk3
    Fixed in 2.40.5-1.el9_3.1
  • webkit2gtk3-devel
    Fixed in 2.40.5-1.el9_3.1
  • webkit2gtk3-jsc
    Fixed in 2.40.5-1.el9_3.1
  • webkit2gtk3-jsc-devel
    Fixed in 2.40.5-1.el9_3.1

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • webkit2gtk
    Fixed in 2.42.3-1~deb12u1
  • wpewebkit
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • webkit2gtk
    Fixed in 2.42.3-1
  • wpewebkit
    Fixed in 2.42.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • webkit2gtk
    Fixed in 2.42.3-1
  • wpewebkit
    Fixed in 2.42.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • qtwebkit-opensource-src
    No fix yet
  • qtwebkit-source
    No fix yet
  • webkit2gtk
    No fix yet
  • webkitgtk
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • qtwebkit-opensource-src
    No fix yet
  • qtwebkit-source
    No fix yet
  • webkit2gtk
    No fix yet
  • webkitgtk
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • qtwebkit-opensource-src
    No fix yet
  • webkit2gtk
    No fix yet
  • wpewebkit
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • qtwebkit-opensource-src
    No fix yet
  • webkit2gtk
    Fixed in 2.42.3-0ubuntu0.22.04.1
  • wpewebkit
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • qtwebkit-opensource-src
    No fix yet
  • webkit2gtk
    Fixed in 2.42.3-1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.