# CVE-2023-32439: webkit2gtk: A type confusion issue was addressed with improved checks

CVE-2023-32439 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2023-32439, released June 23, 2023. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on June 23, 2023. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/cve/CVE-2023-32439
- Priority: Patch now
- CVSS: 8.8 (high)
- EPSS: 0.2397
- CISA KEV: listed Jun 23, 2023, federal due date Jul 14, 2023
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 23, 2023

## Description

A type confusion issue was addressed with improved checks. This issue is fixed in iOS 16.5.1 and iPadOS 16.5.1, iOS 15.7.7 and iPadOS 15.7.7, macOS Ventura 13.4.1, Safari 16.5.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gir1.2-javascriptcoregtk-4.0 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [gir1.2-javascriptcoregtk-4.0 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-javascriptcoregtk-4.0-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | gir1.2-javascriptcoregtk-4.1 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [gir1.2-javascriptcoregtk-4.1 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-javascriptcoregtk-4.1-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | gir1.2-javascriptcoregtk-6.0 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [gir1.2-javascriptcoregtk-6.0 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-javascriptcoregtk-6.0-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | gir1.2-webkit-6.0 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [gir1.2-webkit-6.0 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-webkit-6.0-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | gir1.2-webkit2-4.0 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [gir1.2-webkit2-4.0 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-webkit2-4.0-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | gir1.2-webkit2-4.1 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [gir1.2-webkit2-4.1 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-gir1.2-webkit2-4.1-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | libjavascriptcoregtk-4.0-18 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [libjavascriptcoregtk-4.0-18 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.0-18-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | libjavascriptcoregtk-4.0-bin Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [libjavascriptcoregtk-4.0-bin 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.0-bin-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | libjavascriptcoregtk-4.1-0 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [libjavascriptcoregtk-4.1-0 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.1-0-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | libjavascriptcoregtk-6.0-1 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [libjavascriptcoregtk-6.0-1 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libjavascriptcoregtk-6.0-1-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | libwebkit2gtk-4.0-37 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [libwebkit2gtk-4.0-37 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libwebkit2gtk-4.0-37-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | libwebkit2gtk-4.1-0 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [libwebkit2gtk-4.1-0 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libwebkit2gtk-4.1-0-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | libwebkitgtk-6.0-4 Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [libwebkitgtk-6.0-4 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libwebkitgtk-6.0-4-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 2023 |
| Linux | webkit2gtk Debian 11.6 (bullseye) | 2.40.3-2~deb11u1 | [DSA-5449-1](https://patchblox.com/security/data/fix/linux/dsa-5449-1.md) | Jul 7, 2023 |
| Linux | webkit2gtk Debian 12.15 (bookworm) | 2.40.3-2~deb12u1 | [DSA-5449-1](https://patchblox.com/security/data/fix/linux/dsa-5449-1.md) | Jul 7, 2023 |
| Linux | webkit2gtk Debian 13.5 (trixie) | 2.40.3-1 | [DEBIAN-CVE-2023-32439](https://patchblox.com/security/data/fix/linux/debian-cve-2023-32439.md) | Jun 23, 2023 |
| Linux | webkit2gtk Debian 14 | 2.40.3-1 | [DEBIAN-CVE-2023-32439](https://patchblox.com/security/data/fix/linux/debian-cve-2023-32439.md) | Jun 23, 2023 |
| Linux | webkit2gtk-driver Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 | [webkit2gtk-driver 2.40.4-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-webkit2gtk-driver-2.40.4-0ubuntu0.22.04.1.md) | Sep 27, 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 almalinux 8 | 2.38.5-1.el8_8.5.alma | [ALSA-2023:4202](https://patchblox.com/security/data/fix/linux/alsa-2023-4202.md) | Jul 18, 2023 |
| Linux | webkit2gtk3 almalinux 9 | 2.38.5-1.el9_2.3 | [ALSA-2023:4201](https://patchblox.com/security/data/fix/linux/alsa-2023-4201.md) | Jul 18, 2023 |
| Linux | webkit2gtk3 ol 8 | 0:2.38.5-1.el8_8.5 | [ELSA-2023-4202](https://patchblox.com/security/data/fix/linux/elsa-2023-4202.md) | Jul 20, 2023 |
| Linux | webkit2gtk3 ol 9 | 0:2.38.5-1.el9_2.3 | [ELSA-2023-4201](https://patchblox.com/security/data/fix/linux/elsa-2023-4201.md) | Jul 20, 2023 |
| Linux | webkit2gtk3 rocky 8 | 0:2.38.5-1.el8_8.5 | [RLSA-2023:4202](https://patchblox.com/security/data/fix/linux/rlsa-2023-4202.md) | Aug 8, 2023 |
| Linux | webkit2gtk3 rocky 9 | 0:2.38.5-1.el9_2.3 | [RLSA-2023:4201](https://patchblox.com/security/data/fix/linux/rlsa-2023-4201.md) | Aug 8, 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-devel almalinux 8 | 2.38.5-1.el8_8.5.alma | [ALSA-2023:4202](https://patchblox.com/security/data/fix/linux/alsa-2023-4202.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-devel almalinux 9 | 2.38.5-1.el9_2.3 | [ALSA-2023:4201](https://patchblox.com/security/data/fix/linux/alsa-2023-4201.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-devel ol 8 | 0:2.38.5-1.el8_8.5 | [ELSA-2023-4202](https://patchblox.com/security/data/fix/linux/elsa-2023-4202.md) | Jul 20, 2023 |
| Linux | webkit2gtk3-devel ol 9 | 0:2.38.5-1.el9_2.3 | [ELSA-2023-4201](https://patchblox.com/security/data/fix/linux/elsa-2023-4201.md) | Jul 20, 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 almalinux 8 | 2.38.5-1.el8_8.5.alma | [ALSA-2023:4202](https://patchblox.com/security/data/fix/linux/alsa-2023-4202.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-jsc almalinux 9 | 2.38.5-1.el9_2.3 | [ALSA-2023:4201](https://patchblox.com/security/data/fix/linux/alsa-2023-4201.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-jsc ol 8 | 0:2.38.5-1.el8_8.5 | [ELSA-2023-4202](https://patchblox.com/security/data/fix/linux/elsa-2023-4202.md) | Jul 20, 2023 |
| Linux | webkit2gtk3-jsc ol 9 | 0:2.38.5-1.el9_2.3 | [ELSA-2023-4201](https://patchblox.com/security/data/fix/linux/elsa-2023-4201.md) | Jul 20, 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 | webkit2gtk3-jsc-devel almalinux 8 | 2.38.5-1.el8_8.5.alma | [ALSA-2023:4202](https://patchblox.com/security/data/fix/linux/alsa-2023-4202.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-jsc-devel almalinux 9 | 2.38.5-1.el9_2.3 | [ALSA-2023:4201](https://patchblox.com/security/data/fix/linux/alsa-2023-4201.md) | Jul 18, 2023 |
| Linux | webkit2gtk3-jsc-devel ol 8 | 0:2.38.5-1.el8_8.5 | [ELSA-2023-4202](https://patchblox.com/security/data/fix/linux/elsa-2023-4202.md) | Jul 20, 2023 |
| Linux | webkit2gtk3-jsc-devel ol 9 | 0:2.38.5-1.el9_2.3 | [ELSA-2023-4201](https://patchblox.com/security/data/fix/linux/elsa-2023-4201.md) | Jul 20, 2023 |
| Linux | wpewebkit Debian 13.5 (trixie) | 2.40.3-1 | [DEBIAN-CVE-2023-32439](https://patchblox.com/security/data/fix/linux/debian-cve-2023-32439.md) | Jun 23, 2023 |
| Linux | wpewebkit Debian 14 | 2.40.3-1 | [DEBIAN-CVE-2023-32439](https://patchblox.com/security/data/fix/linux/debian-cve-2023-32439.md) | Jun 23, 2023 |

---

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