CVE-2018-4200: Use After Free
First published: Mon May 07 2018(Updated: )
An issue was discovered in certain Apple products. iOS before 11.3.1 is affected. Safari before 11.1 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. 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 that triggers a WebCore::jsElementScrollHeightGetter use-after-free.
Credit: product-security@apple.com Ivan Fratric Google Project Zero
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/webkit2gtk | <2.20.2-0ubuntu0.17.10.1 | 2.20.2-0ubuntu0.17.10.1 |
| ubuntu/webkit2gtk | <2.20.2-0ubuntu0.18.04.1 | 2.20.2-0ubuntu0.18.04.1 |
| ubuntu/webkit2gtk | <2.20.2 | 2.20.2 |
| ubuntu/webkit2gtk | <2.20.2-0ubuntu0.16.04.1 | 2.20.2-0ubuntu0.16.04.1 |
| debian/webkit2gtk | 2.44.2-1~deb11u1 2.44.2-1~deb12u1 2.44.2-1 | |
| Apple Mobile Safari | <11.1 | |
| iOS | <11.3.1 | |
| tvOS | <11.4 | |
| All of | ||
| Apple iCloud for Windows | <7.5 | |
| Microsoft Windows | ||
| All of | ||
| Apple iTunes for Windows | <12.7.5 | |
| Microsoft Windows | ||
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =17.10 | |
| Ubuntu Linux | =18.04 | |
| Apple iTunes | <12.7.5 | 12.7.5 |
| iStyle @cosme iPhone OS | <11.3.1 | |
| Apple iCloud for Windows | <7.5 | |
| Microsoft Windows | ||
| Apple iTunes for Windows | <12.7.5 | |
| Ubuntu | =16.04 | |
| Ubuntu | =17.10 | |
| Ubuntu | =18.04 |
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Reference Links
- https://support.apple.com/en-us/HT208852 (Advisory)
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1525
- https://support.apple.com/HT208741
- https://support.apple.com/HT208743
- https://support.apple.com/HT208850
- https://support.apple.com/HT208852
- https://support.apple.com/HT208853
- https://www.exploit-db.com/exploits/44566/
- https://usn.ubuntu.com/3640-1/
- http://www.securityfocus.com/bid/103961
- http://www.securitytracker.com/id/1040743
- https://security.gentoo.org/glsa/201808-04
- https://launchpad.net/bugs/cve/CVE-2018-4200
- https://webkitgtk.org/security/WSA-2018-0004.html
- https://security-tracker.debian.org/tracker/CVE-2018-4200
- https://ubuntu.com/security/notices/USN-3640-1
- https://www.cve.org/CVERecord?id=CVE-2018-4200
- https://nvd.nist.gov/vuln/detail/CVE-2018-4200
- https://ubuntu.com/security/CVE-2018-4200
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2018-4200?
CVE-2018-4200 is a memory corruption vulnerability in the WebKit component of certain Apple products.
Which Apple products are affected by CVE-2018-4200?
iOS before 11.3.1, Safari before 11.1, iCloud before 7.5 on Windows, iTunes before 12.7.5 on Windows, and tvOS before 11.4 are affected.
What is the severity of CVE-2018-4200?
CVE-2018-4200 has a severity rating of 8.8 (high).
How can I fix CVE-2018-4200?
Update to the latest version of iOS, Safari, iCloud, iTunes, or tvOS to fix CVE-2018-4200.
Are Microsoft Windows systems vulnerable to CVE-2018-4200?
No, Microsoft Windows systems are not vulnerable to CVE-2018-4200.
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