# libjavascriptcoregtk-4.0-bin 2.40.4-0ubuntu0.22.04.1: libjavascriptcoregtk-4.0-bin 2.40.4-0ubuntu0.22.04.1 for Ubuntu 22.04.1 LTS (jammy)

libjavascriptcoregtk-4.0-bin 2.40.4-0ubuntu0.22.04.1, released September 27, 2023, fixes 9 CVEs in libjavascriptcoregtk-4.0-bin. 5 of them are being exploited (CVE-2023-32439); 5 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-jammy-libjavascriptcoregtk-4.0-bin-2.40.4-0ubuntu0.22.04.1
- Platform: Linux
- Released: Sep 27, 2023
- Priority: Patch now (Closes CVE-2023-32439, exploited (CISA KEV))
- CVEs: 9, exploited: 5, on CISA KEV: 5

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libjavascriptcoregtk-4.0-bin](https://patchblox.com/security/data/product/linux/libjavascriptcoregtk-4.0-bin.md) | Ubuntu 22.04.1 LTS (jammy) | 2.40.4-0ubuntu0.22.04.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-32439](https://patchblox.com/security/data/cve/CVE-2023-32439.md) | Patch now | webkit2gtk: A type confusion issue was addressed with improved checks | 8.8 | 0.2397 | CISA KEV |
| [CVE-2023-32435](https://patchblox.com/security/data/cve/CVE-2023-32435.md) | Patch now | webkit2gtk: A memory corruption issue was addressed with improved state management | 8.8 | 0.2295 | CISA KEV |
| [CVE-2023-37450](https://patchblox.com/security/data/cve/CVE-2023-37450.md) | Patch now | webkit2gtk: The issue was addressed with improved checks | 8.8 | 0.1895 | CISA KEV |
| [CVE-2023-28204](https://patchblox.com/security/data/cve/CVE-2023-28204.md) | Patch now | webkit2gtk: An out-of-bounds read was addressed with improved input validation | 6.5 | 0.1429 | CISA KEV |
| [CVE-2023-32373](https://patchblox.com/security/data/cve/CVE-2023-32373.md) | Patch now | webkit2gtk: A use-after-free issue was addressed with improved memory management | 8.8 | 0.1217 | CISA KEV |
| [CVE-2023-35074](https://patchblox.com/security/data/cve/CVE-2023-35074.md) | High | webkit2gtk: The issue was addressed with improved memory handling | 8.8 | 0.0158 |  |
| [CVE-2023-32393](https://patchblox.com/security/data/cve/CVE-2023-32393.md) | High | webkit2gtk: The issue was addressed with improved memory handling | 8.8 | 0.0095 |  |
| [CVE-2023-28198](https://patchblox.com/security/data/cve/CVE-2023-28198.md) | High | webkit2gtk: A use-after-free issue was addressed with improved memory management | 8.8 | 0.0093 |  |
| [CVE-2023-32370](https://patchblox.com/security/data/cve/CVE-2023-32370.md) | Routine | webkit2gtk: A logic issue was addressed with improved validation | 5.3 | 0.0079 |  |

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Data as of 2026-11-12T19:57:06Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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