# CVE-2021-30761: gir1.2-javascriptcoregtk-4.0: A memory corruption issue was addressed with improved state management

CVE-2021-30761 is fixed in 14 products on 1 platform, first by RHSA-2020:4451, released November 4, 2020. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/cve/CVE-2021-30761
- Priority: Patch now
- CVSS: 8.8 (Medium)
- EPSS: 0.1055
- CISA KEV: listed Nov 3, 2021, federal due date Nov 17, 2021
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 4, 2020

## Description

A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 12.5.4. 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 | LibRaw RHEL 8 | 0:0.19.5-2.el8 | [RHSA-2020:4451](https://patchblox.com/security/data/fix/linux/rhsa-2020-4451.md) | Nov 4, 2020 |
| Linux | LibRaw-devel RHEL 8 | 0:0.19.5-2.el8 | [RHSA-2020:4451](https://patchblox.com/security/data/fix/linux/rhsa-2020-4451.md) | Nov 4, 2020 |
| Linux | gir1.2-javascriptcoregtk-4.0 Ubuntu 18.04.6 LTS (bionic) | 2.26.1-0ubuntu0.18.04.1 | [gir1.2-javascriptcoregtk-4.0 2.26.1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gir1.2-javascriptcoregtk-4.0-2.26.1-0ubuntu0.18.04.1.md) | Sep 8, 2021 |
| Linux | gir1.2-webkit2-4.0 Ubuntu 18.04.6 LTS (bionic) | 2.26.1-0ubuntu0.18.04.1 | [gir1.2-webkit2-4.0 2.26.1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gir1.2-webkit2-4.0-2.26.1-0ubuntu0.18.04.1.md) | Sep 8, 2021 |
| Linux | gnome-settings-daemon RHEL 8 | 0:3.32.0-11.el8 | [RHSA-2020:4451](https://patchblox.com/security/data/fix/linux/rhsa-2020-4451.md) | Nov 4, 2020 |
| Linux | libjavascriptcoregtk-4.0-18 Ubuntu 18.04.6 LTS (bionic) | 2.26.1-0ubuntu0.18.04.1 | [libjavascriptcoregtk-4.0-18 2.26.1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libjavascriptcoregtk-4.0-18-2.26.1-0ubuntu0.18.04.1.md) | Sep 8, 2021 |
| Linux | libjavascriptcoregtk-4.0-bin Ubuntu 18.04.6 LTS (bionic) | 2.26.1-0ubuntu0.18.04.1 | [libjavascriptcoregtk-4.0-bin 2.26.1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libjavascriptcoregtk-4.0-bin-2.26.1-0ubuntu0.18.04.1.md) | Sep 8, 2021 |
| Linux | libwebkit2gtk-4.0-37 Ubuntu 18.04.6 LTS (bionic) | 2.26.1-0ubuntu0.18.04.1 | [libwebkit2gtk-4.0-37 2.26.1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libwebkit2gtk-4.0-37-2.26.1-0ubuntu0.18.04.1.md) | Sep 8, 2021 |
| Linux | libwebkit2gtk-4.0-37-gtk2 Ubuntu 18.04.6 LTS (bionic) | 2.26.1-0ubuntu0.18.04.1 | [libwebkit2gtk-4.0-37-gtk2 2.26.1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libwebkit2gtk-4.0-37-gtk2-2.26.1-0ubuntu0.18.04.1.md) | Sep 8, 2021 |
| Linux | webkit2gtk-driver Ubuntu 18.04.6 LTS (bionic) | 2.26.1-0ubuntu0.18.04.1 | [webkit2gtk-driver 2.26.1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-webkit2gtk-driver-2.26.1-0ubuntu0.18.04.1.md) | Sep 8, 2021 |
| Linux | webkit2gtk3 RHEL 8 | 0:2.28.4-1.el8 | [RHSA-2020:4451](https://patchblox.com/security/data/fix/linux/rhsa-2020-4451.md) | Nov 4, 2020 |
| Linux | webkit2gtk3-devel RHEL 8 | 0:2.28.4-1.el8 | [RHSA-2020:4451](https://patchblox.com/security/data/fix/linux/rhsa-2020-4451.md) | Nov 4, 2020 |
| Linux | webkit2gtk3-jsc RHEL 8 | 0:2.28.4-1.el8 | [RHSA-2020:4451](https://patchblox.com/security/data/fix/linux/rhsa-2020-4451.md) | Nov 4, 2020 |
| Linux | webkit2gtk3-jsc-devel RHEL 8 | 0:2.28.4-1.el8 | [RHSA-2020:4451](https://patchblox.com/security/data/fix/linux/rhsa-2020-4451.md) | Nov 4, 2020 |

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