# CVE-2023-42916: webkit2gtk: An out-of-bounds read was addressed with improved input validation

CVE-2023-42916 is fixed in 20 products on 1 platform, first by RHSA-2023:4202, released July 18, 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-2023-42916
- Priority: Patch now
- CVSS: 6.8 (medium)
- EPSS: 0.1782
- CISA KEV: listed Dec 4, 2023, federal due date Dec 25, 2023
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 18, 2023

## Description

An out-of-bounds read was addressed with improved input validation. 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 disclose sensitive information. 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 11.6 (bullseye) | 2.42.3-1~deb11u1 | [DSA-5575-1](https://patchblox.com/security/data/fix/linux/dsa-5575-1.md) | Dec 11, 2023 |
| Linux | webkit2gtk Debian 12.15 (bookworm) | 2.42.3-1~deb12u1 | [DSA-5575-1](https://patchblox.com/security/data/fix/linux/dsa-5575-1.md) | Dec 11, 2023 |
| Linux | webkit2gtk Debian 13.5 (trixie) | 2.42.3-1 | [DEBIAN-CVE-2023-42916](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42916.md) | Nov 30, 2023 |
| Linux | webkit2gtk Debian 14 | 2.42.3-1 | [DEBIAN-CVE-2023-42916](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42916.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 | 0:2.38.5-1.el8_8.5 | [RHSA-2023:4202](https://patchblox.com/security/data/fix/linux/rhsa-2023-4202.md) | Jul 18, 2023 |
| Linux | webkit2gtk3 RHEL 9 | 0:2.38.5-1.el9_2.3 | [RHSA-2023:4201](https://patchblox.com/security/data/fix/linux/rhsa-2023-4201.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-devel RHEL 8 | 0:2.38.5-1.el8_8.5 | [RHSA-2023:4202](https://patchblox.com/security/data/fix/linux/rhsa-2023-4202.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-devel RHEL 9 | 0:2.38.5-1.el9_2.3 | [RHSA-2023:4201](https://patchblox.com/security/data/fix/linux/rhsa-2023-4201.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-jsc RHEL 8 | 0:2.38.5-1.el8_8.5 | [RHSA-2023:4202](https://patchblox.com/security/data/fix/linux/rhsa-2023-4202.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-jsc RHEL 9 | 0:2.38.5-1.el9_2.3 | [RHSA-2023:4201](https://patchblox.com/security/data/fix/linux/rhsa-2023-4201.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-jsc-devel RHEL 8 | 0:2.38.5-1.el8_8.5 | [RHSA-2023:4202](https://patchblox.com/security/data/fix/linux/rhsa-2023-4202.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-jsc-devel RHEL 9 | 0:2.38.5-1.el9_2.3 | [RHSA-2023:4201](https://patchblox.com/security/data/fix/linux/rhsa-2023-4201.md) | Jul 18, 2023 |
| Linux | wpewebkit Debian 13.5 (trixie) | 2.42.3-1 | [DEBIAN-CVE-2023-42916](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42916.md) | Nov 30, 2023 |
| Linux | wpewebkit Debian 14 | 2.42.3-1 | [DEBIAN-CVE-2023-42916](https://patchblox.com/security/data/fix/linux/debian-cve-2023-42916.md) | Nov 30, 2023 |

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