# CVE-2018-12294: gir1.2-javascriptcoregtk-4.0: WebCore/platform/graphics/texmap/TextureMapperLayer.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.2, is...

CVE-2018-12294 is fixed in 7 products on 1 platform, first by gir1.2-javascriptcoregtk-4.0 2.20.2-0ubuntu0.18.04.1, released June 19, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-12294
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0233
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 19, 2018

## Description

WebCore/platform/graphics/texmap/TextureMapperLayer.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.2, is vulnerable to a use after free for a WebCore::TextureMapperLayer object.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gir1.2-javascriptcoregtk-4.0 Ubuntu 18.04.6 LTS (bionic) | 2.20.2-0ubuntu0.18.04.1 | [gir1.2-javascriptcoregtk-4.0 2.20.2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gir1.2-javascriptcoregtk-4.0-2.20.2-0ubuntu0.18.04.1.md) | Jun 19, 2018 |
| Linux | gir1.2-webkit2-4.0 Ubuntu 18.04.6 LTS (bionic) | 2.20.2-0ubuntu0.18.04.1 | [gir1.2-webkit2-4.0 2.20.2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gir1.2-webkit2-4.0-2.20.2-0ubuntu0.18.04.1.md) | Jun 19, 2018 |
| Linux | libjavascriptcoregtk-4.0-18 Ubuntu 18.04.6 LTS (bionic) | 2.20.2-0ubuntu0.18.04.1 | [libjavascriptcoregtk-4.0-18 2.20.2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libjavascriptcoregtk-4.0-18-2.20.2-0ubuntu0.18.04.1.md) | Jun 19, 2018 |
| Linux | libjavascriptcoregtk-4.0-bin Ubuntu 18.04.6 LTS (bionic) | 2.20.2-0ubuntu0.18.04.1 | [libjavascriptcoregtk-4.0-bin 2.20.2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libjavascriptcoregtk-4.0-bin-2.20.2-0ubuntu0.18.04.1.md) | Jun 19, 2018 |
| Linux | libwebkit2gtk-4.0-37 Ubuntu 18.04.6 LTS (bionic) | 2.20.2-0ubuntu0.18.04.1 | [libwebkit2gtk-4.0-37 2.20.2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libwebkit2gtk-4.0-37-2.20.2-0ubuntu0.18.04.1.md) | Jun 19, 2018 |
| Linux | libwebkit2gtk-4.0-37-gtk2 Ubuntu 18.04.6 LTS (bionic) | 2.20.2-0ubuntu0.18.04.1 | [libwebkit2gtk-4.0-37-gtk2 2.20.2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libwebkit2gtk-4.0-37-gtk2-2.20.2-0ubuntu0.18.04.1.md) | Jun 19, 2018 |
| Linux | webkit2gtk-driver Ubuntu 18.04.6 LTS (bionic) | 2.20.2-0ubuntu0.18.04.1 | [webkit2gtk-driver 2.20.2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-webkit2gtk-driver-2.20.2-0ubuntu0.18.04.1.md) | Jun 19, 2018 |

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Data as of 2026-11-07T18:46:35Z 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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