CVE-2018-4266: Race Condition
First published: Mon Jul 09 2018(Updated: )
A race condition was addressed with additional validation. This issue affected versions prior toiVersions prior to: OS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.
Credit: found by OSS-Fuzz found by OSS-Fuzz found by OSS-Fuzz found by OSS-Fuzz found by OSS-Fuzz found by OSS-Fuzz product-security@apple.com product-security@apple.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apple iCloud for Windows | <7.6 | 7.6 |
| Apple iTunes for Windows | <12.8 | 12.8 |
| Apple Safari | <11.1.2 | 11.1.2 |
| Apple watchOS | <4.3.2 | 4.3.2 |
| Apple tvOS | <11.4.1 | 11.4.1 |
| Apple iOS | <11.4.1 | 11.4.1 |
| Apple Safari | <11.1.2 | |
| Apple iPhone OS | <11.4.1 | |
| Apple tvOS | <11.4.1 | |
| Apple watchOS | <4.3.2 | |
| All of | ||
| Any of | ||
| Apple iCloud | <7.6 | |
| Apple iTunes | <12.8 | |
| Microsoft Windows | ||
| Apple iCloud | <7.6 | |
| Apple iTunes | <12.8 | |
| Microsoft Windows | ||
| debian/webkit2gtk | 2.44.2-1~deb11u1 2.44.3-1~deb11u1 2.44.2-1~deb12u1 2.44.3-1~deb12u1 2.44.4-1 2.46.0-2 |
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Reference Links
- https://support.apple.com/en-us/HT208932 (Advisory)
- https://support.apple.com/en-us/HT208933 (Advisory)
- https://support.apple.com/en-us/HT208934 (Advisory)
- https://support.apple.com/kb/HT208932
- https://support.apple.com/kb/HT208933
- https://support.apple.com/kb/HT208934
- https://support.apple.com/kb/HT208935
- https://support.apple.com/kb/HT208936
- https://support.apple.com/kb/HT208938
- https://launchpad.net/bugs/cve/CVE-2018-4266
- https://support.apple.com/en-us/HT208935 (Advisory)
- https://support.apple.com/en-us/HT208936 (Advisory)
- https://support.apple.com/en-us/HT208938 (Advisory)
- https://webkitgtk.org/security/WSA-2018-0006.html
- https://security-tracker.debian.org/tracker/CVE-2018-4266
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4266
- https://nvd.nist.gov/vuln/detail/CVE-2018-4266
- https://ubuntu.com/security/CVE-2018-4266
Parent vulnerabilities
(Appears in the following advisories)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2018-4293
- CVE-2018-4269
- CVE-2018-4270
- CVE-2018-4284
- CVE-2018-4278
- CVE-2018-4266
- CVE-2018-4261
- CVE-2018-4262
- CVE-2018-4263
- CVE-2018-4264
- CVE-2018-4265
- CVE-2018-4267
- CVE-2018-4272
- CVE-2018-4271
- CVE-2018-4273
- CVE-2018-4145
- CVE-2018-4279
- CVE-2018-4362
- CVE-2018-4274
- CVE-2018-4260
- CVE-2018-4290
- CVE-2018-4282
- CVE-2018-4280
- CVE-2018-4248
- CVE-2018-4277
- CVE-2018-4327
- CVE-2018-4216
- CVE-2018-4275
Frequently Asked Questions
What is CVE-2018-4266?
CVE-2018-4266 refers to a race condition vulnerability in WebKit that was addressed with additional validation.
Which versions are affected by CVE-2018-4266?
Versions prior to OS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, and iCloud for Windows 7.6 are affected.
What is the severity of CVE-2018-4266?
CVE-2018-4266 has a severity rating of medium with a CVSS score of 5.9.
How can I fix CVE-2018-4266?
To fix CVE-2018-4266, update to the latest versions of the affected software or apply the recommended patches.
Where can I find more information about CVE-2018-4266?
You can find more information about CVE-2018-4266 on the MITRE CVE website, Apple's support page, and the WebKitGTK security advisory.
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