# CVE-2023-42917: webkit2gtk: A memory corruption vulnerability was addressed with improved locking

CVE-2023-42917 is fixed in 20 products on 1 platform, first by gir1.2-javascriptcoregtk-4.0 2.42.3-0ubuntu0.22.04.1, released November 30, 2023. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on December 4, 2023. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/cve/CVE-2023-42917
- Priority: Patch now
- CVSS: 8.8 (high)
- EPSS: 0.0930
- CISA KEV: listed Dec 4, 2023, federal due date Dec 25, 2023
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 30, 2023

## 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 arbitrary code execution. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gir1.2-javascriptcoregtk-4.0 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [gir1.2-javascriptcoregtk-4.0 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-javascriptcoregtk-4.0-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | gir1.2-javascriptcoregtk-4.0 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [gir1.2-javascriptcoregtk-4.0 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-javascriptcoregtk-4.0-2.42.3-1.md) | Nov 30, 2023 |
| Linux | gir1.2-javascriptcoregtk-4.1 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [gir1.2-javascriptcoregtk-4.1 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-javascriptcoregtk-4.1-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | gir1.2-javascriptcoregtk-4.1 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [gir1.2-javascriptcoregtk-4.1 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-javascriptcoregtk-4.1-2.42.3-1.md) | Nov 30, 2023 |
| Linux | gir1.2-javascriptcoregtk-6.0 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [gir1.2-javascriptcoregtk-6.0 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-javascriptcoregtk-6.0-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | gir1.2-javascriptcoregtk-6.0 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [gir1.2-javascriptcoregtk-6.0 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-javascriptcoregtk-6.0-2.42.3-1.md) | Nov 30, 2023 |
| Linux | gir1.2-webkit-6.0 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [gir1.2-webkit-6.0 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-webkit-6.0-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | gir1.2-webkit-6.0 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [gir1.2-webkit-6.0 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-webkit-6.0-2.42.3-1.md) | Nov 30, 2023 |
| Linux | gir1.2-webkit2-4.0 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [gir1.2-webkit2-4.0 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-webkit2-4.0-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | gir1.2-webkit2-4.0 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [gir1.2-webkit2-4.0 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-webkit2-4.0-2.42.3-1.md) | Nov 30, 2023 |
| Linux | gir1.2-webkit2-4.1 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [gir1.2-webkit2-4.1 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-webkit2-4.1-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | gir1.2-webkit2-4.1 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [gir1.2-webkit2-4.1 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-gir1.2-webkit2-4.1-2.42.3-1.md) | Nov 30, 2023 |
| Linux | libjavascriptcoregtk-4.0-18 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [libjavascriptcoregtk-4.0-18 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.0-18-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | libjavascriptcoregtk-4.0-18 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [libjavascriptcoregtk-4.0-18 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libjavascriptcoregtk-4.0-18-2.42.3-1.md) | Nov 30, 2023 |
| Linux | libjavascriptcoregtk-4.0-bin Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [libjavascriptcoregtk-4.0-bin 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.0-bin-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | libjavascriptcoregtk-4.0-bin Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [libjavascriptcoregtk-4.0-bin 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libjavascriptcoregtk-4.0-bin-2.42.3-1.md) | Nov 30, 2023 |
| Linux | libjavascriptcoregtk-4.1-0 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [libjavascriptcoregtk-4.1-0 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.1-0-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | libjavascriptcoregtk-4.1-0 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [libjavascriptcoregtk-4.1-0 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libjavascriptcoregtk-4.1-0-2.42.3-1.md) | Nov 30, 2023 |
| Linux | libjavascriptcoregtk-6.0-1 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [libjavascriptcoregtk-6.0-1 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-6.0-1-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | libjavascriptcoregtk-6.0-1 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [libjavascriptcoregtk-6.0-1 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libjavascriptcoregtk-6.0-1-2.42.3-1.md) | Nov 30, 2023 |
| Linux | libwebkit2gtk-4.0-37 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [libwebkit2gtk-4.0-37 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libwebkit2gtk-4.0-37-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | libwebkit2gtk-4.0-37 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [libwebkit2gtk-4.0-37 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libwebkit2gtk-4.0-37-2.42.3-1.md) | Nov 30, 2023 |
| Linux | libwebkit2gtk-4.1-0 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [libwebkit2gtk-4.1-0 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libwebkit2gtk-4.1-0-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | libwebkit2gtk-4.1-0 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [libwebkit2gtk-4.1-0 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libwebkit2gtk-4.1-0-2.42.3-1.md) | Nov 30, 2023 |
| Linux | libwebkitgtk-6.0-4 Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [libwebkitgtk-6.0-4 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libwebkitgtk-6.0-4-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | libwebkitgtk-6.0-4 Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [libwebkitgtk-6.0-4 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libwebkitgtk-6.0-4-2.42.3-1.md) | Nov 30, 2023 |
| Linux | webkit2gtk Debian 12.15 (bookworm) | 2.42.3-1~deb12u1 | [DEBIAN-CVE-2023-42917](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42917.md) | Nov 30, 2023 |
| Linux | webkit2gtk Debian 13.5 (trixie) | 2.42.3-1 | [DEBIAN-CVE-2023-42917](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42917.md) | Nov 30, 2023 |
| Linux | webkit2gtk Debian 14 | 2.42.3-1 | [DEBIAN-CVE-2023-42917](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42917.md) | Nov 30, 2023 |
| Linux | webkit2gtk-driver Ubuntu 22.04.1 LTS (jammy) | 2.42.3-0ubuntu0.22.04.1 | [webkit2gtk-driver 2.42.3-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-webkit2gtk-driver-2.42.3-0ubuntu0.22.04.1.md) | Nov 30, 2023 |
| Linux | webkit2gtk-driver Ubuntu 24.04.5 LTS (noble) | 2.42.3-1 | [webkit2gtk-driver 2.42.3-1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-webkit2gtk-driver-2.42.3-1.md) | Nov 30, 2023 |
| Linux | webkit2gtk3 RHEL 8 | 0:2.42.5-1.el8 | [RHSA-2024:2982](https://patchblox.com/security/data/fix/linux/rhsa-2024-2982.md) | May 22, 2024 |
| Linux | webkit2gtk3 RHEL 9 | 0:2.42.5-1.el9 | [RHSA-2024:2126](https://patchblox.com/security/data/fix/linux/rhsa-2024-2126.md) | Apr 30, 2024 |
| Linux | webkit2gtk3 almalinux 8 | 2.42.5-1.el8 | [ALSA-2024:2982](https://patchblox.com/security/data/fix/linux/alsa-2024-2982.md) | May 22, 2024 |
| Linux | webkit2gtk3 almalinux 9 | 2.40.5-1.el9_3.1 | [ALSA-2023:7715](https://patchblox.com/security/data/fix/linux/alsa-2023-7715.md) | Dec 11, 2023 |
| Linux | webkit2gtk3 ol 8 | 0:2.40.5-1.el8_9.1 | [ELSA-2023-7716](https://patchblox.com/security/data/fix/linux/elsa-2023-7716.md) | Dec 13, 2023 |
| Linux | webkit2gtk3 ol 9 | 0:2.40.5-1.el9_3.1 | [ELSA-2023-7715](https://patchblox.com/security/data/fix/linux/elsa-2023-7715.md) | Dec 13, 2023 |
| Linux | webkit2gtk3 rocky 8 | 0:2.40.5-1.el8_9.1 | [RLSA-2023:7716](https://patchblox.com/security/data/fix/linux/rlsa-2023-7716.md) | Jan 9, 2024 |
| Linux | webkit2gtk3-devel RHEL 8 | 0:2.42.5-1.el8 | [RHSA-2024:2982](https://patchblox.com/security/data/fix/linux/rhsa-2024-2982.md) | May 22, 2024 |
| Linux | webkit2gtk3-devel RHEL 9 | 0:2.42.5-1.el9 | [RHSA-2024:2126](https://patchblox.com/security/data/fix/linux/rhsa-2024-2126.md) | Apr 30, 2024 |
| Linux | webkit2gtk3-devel almalinux 8 | 2.42.5-1.el8 | [ALSA-2024:2982](https://patchblox.com/security/data/fix/linux/alsa-2024-2982.md) | May 22, 2024 |
| Linux | webkit2gtk3-devel almalinux 9 | 2.40.5-1.el9_3.1 | [ALSA-2023:7715](https://patchblox.com/security/data/fix/linux/alsa-2023-7715.md) | Dec 11, 2023 |
| Linux | webkit2gtk3-devel ol 8 | 0:2.40.5-1.el8_9.1 | [ELSA-2023-7716](https://patchblox.com/security/data/fix/linux/elsa-2023-7716.md) | Dec 13, 2023 |
| Linux | webkit2gtk3-devel ol 9 | 0:2.40.5-1.el9_3.1 | [ELSA-2023-7715](https://patchblox.com/security/data/fix/linux/elsa-2023-7715.md) | Dec 13, 2023 |
| Linux | webkit2gtk3-jsc RHEL 8 | 0:2.42.5-1.el8 | [RHSA-2024:2982](https://patchblox.com/security/data/fix/linux/rhsa-2024-2982.md) | May 22, 2024 |
| Linux | webkit2gtk3-jsc RHEL 9 | 0:2.42.5-1.el9 | [RHSA-2024:2126](https://patchblox.com/security/data/fix/linux/rhsa-2024-2126.md) | Apr 30, 2024 |
| Linux | webkit2gtk3-jsc almalinux 8 | 2.42.5-1.el8 | [ALSA-2024:2982](https://patchblox.com/security/data/fix/linux/alsa-2024-2982.md) | May 22, 2024 |
| Linux | webkit2gtk3-jsc almalinux 9 | 2.40.5-1.el9_3.1 | [ALSA-2023:7715](https://patchblox.com/security/data/fix/linux/alsa-2023-7715.md) | Dec 11, 2023 |
| Linux | webkit2gtk3-jsc ol 8 | 0:2.40.5-1.el8_9.1 | [ELSA-2023-7716](https://patchblox.com/security/data/fix/linux/elsa-2023-7716.md) | Dec 13, 2023 |
| Linux | webkit2gtk3-jsc ol 9 | 0:2.40.5-1.el9_3.1 | [ELSA-2023-7715](https://patchblox.com/security/data/fix/linux/elsa-2023-7715.md) | Dec 13, 2023 |
| Linux | webkit2gtk3-jsc-devel RHEL 8 | 0:2.42.5-1.el8 | [RHSA-2024:2982](https://patchblox.com/security/data/fix/linux/rhsa-2024-2982.md) | May 22, 2024 |
| Linux | webkit2gtk3-jsc-devel RHEL 9 | 0:2.42.5-1.el9 | [RHSA-2024:2126](https://patchblox.com/security/data/fix/linux/rhsa-2024-2126.md) | Apr 30, 2024 |
| Linux | webkit2gtk3-jsc-devel almalinux 8 | 2.42.5-1.el8 | [ALSA-2024:2982](https://patchblox.com/security/data/fix/linux/alsa-2024-2982.md) | May 22, 2024 |
| Linux | webkit2gtk3-jsc-devel almalinux 9 | 2.40.5-1.el9_3.1 | [ALSA-2023:7715](https://patchblox.com/security/data/fix/linux/alsa-2023-7715.md) | Dec 11, 2023 |
| Linux | webkit2gtk3-jsc-devel ol 8 | 0:2.40.5-1.el8_9.1 | [ELSA-2023-7716](https://patchblox.com/security/data/fix/linux/elsa-2023-7716.md) | Dec 13, 2023 |
| Linux | webkit2gtk3-jsc-devel ol 9 | 0:2.40.5-1.el9_3.1 | [ELSA-2023-7715](https://patchblox.com/security/data/fix/linux/elsa-2023-7715.md) | Dec 13, 2023 |
| Linux | wpewebkit Debian 13.5 (trixie) | 2.42.3-1 | [DEBIAN-CVE-2023-42917](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42917.md) | Nov 30, 2023 |
| Linux | wpewebkit Debian 14 | 2.42.3-1 | [DEBIAN-CVE-2023-42917](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42917.md) | Nov 30, 2023 |

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