# CVE-2018-4233: iTunes: Improper Restriction of Operations within the Bounds of a Memory Buffer

CVE-2018-4233 is fixed in 8 products on 2 platforms, first by gir1.2-javascriptcoregtk-4.0 2.20.3-0ubuntu0.18.04.1, released April 3, 2019. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2018-4233
- Priority: High
- CVSS: 8.8 (Medium)
- EPSS: 0.5382
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 7, 2018
- Weakness: CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2018-4233

## Description

An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. iCloud before 7.5 on Windows is affected. iTunes before 12.7.5 on Windows is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | iTunes | 12.11.4.15 | [iTunes 12.11.4.15](https://patchblox.com/security/data/fix/windows-app/apple.itunes-12.11.4.15.md) | Aug 4, 2021 |
| Linux | gir1.2-javascriptcoregtk-4.0 Ubuntu 18.04.6 LTS (bionic) | 2.20.3-0ubuntu0.18.04.1 | [gir1.2-javascriptcoregtk-4.0 2.20.3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gir1.2-javascriptcoregtk-4.0-2.20.3-0ubuntu0.18.04.1.md) | Apr 3, 2019 |
| Linux | gir1.2-webkit2-4.0 Ubuntu 18.04.6 LTS (bionic) | 2.20.3-0ubuntu0.18.04.1 | [gir1.2-webkit2-4.0 2.20.3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-gir1.2-webkit2-4.0-2.20.3-0ubuntu0.18.04.1.md) | Apr 3, 2019 |
| Linux | libjavascriptcoregtk-4.0-18 Ubuntu 18.04.6 LTS (bionic) | 2.20.3-0ubuntu0.18.04.1 | [libjavascriptcoregtk-4.0-18 2.20.3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libjavascriptcoregtk-4.0-18-2.20.3-0ubuntu0.18.04.1.md) | Apr 3, 2019 |
| Linux | libjavascriptcoregtk-4.0-bin Ubuntu 18.04.6 LTS (bionic) | 2.20.3-0ubuntu0.18.04.1 | [libjavascriptcoregtk-4.0-bin 2.20.3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libjavascriptcoregtk-4.0-bin-2.20.3-0ubuntu0.18.04.1.md) | Apr 3, 2019 |
| Linux | libwebkit2gtk-4.0-37 Ubuntu 18.04.6 LTS (bionic) | 2.20.3-0ubuntu0.18.04.1 | [libwebkit2gtk-4.0-37 2.20.3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libwebkit2gtk-4.0-37-2.20.3-0ubuntu0.18.04.1.md) | Apr 3, 2019 |
| Linux | libwebkit2gtk-4.0-37-gtk2 Ubuntu 18.04.6 LTS (bionic) | 2.20.3-0ubuntu0.18.04.1 | [libwebkit2gtk-4.0-37-gtk2 2.20.3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libwebkit2gtk-4.0-37-gtk2-2.20.3-0ubuntu0.18.04.1.md) | Apr 3, 2019 |
| Linux | webkit2gtk-driver Ubuntu 18.04.6 LTS (bionic) | 2.20.3-0ubuntu0.18.04.1 | [webkit2gtk-driver 2.20.3-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-webkit2gtk-driver-2.20.3-0ubuntu0.18.04.1.md) | Apr 3, 2019 |

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Data as of 2026-11-07T06:34:28Z 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