CVE-2018-4271: Input Validation
Multiple memory corruption issues were addressed with improved input validation. This issue affected versions prior to iOS 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.
Other sources
WebKit. Multiple memory corruption issues were addressed with improved input validation.
Credit
Affected Software
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2018-4293
- CVE-2018-4269
- CVE-2018-4282
- CVE-2018-4280
- CVE-2018-4248
- CVE-2018-4277
- CVE-2018-4270
- CVE-2018-4278
- CVE-2018-4284
- 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-2018-4290
- CVE-2018-4145
- CVE-2018-4279
- CVE-2018-4362
- CVE-2018-4274
- CVE-2018-4260
- CVE-2018-4327
- CVE-2018-4216
- CVE-2018-4275
Frequently Asked Questions
What is CVE-2018-4271?
CVE-2018-4271 is a vulnerability in WebKit that leads to multiple memory corruption issues due to improved input validation.
Which software versions are affected by CVE-2018-4271?
Versions prior to iOS 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 are affected by CVE-2018-4271.
What is the severity of CVE-2018-4271?
CVE-2018-4271 has a severity rating of 6.5, which is considered medium.
How can I fix CVE-2018-4271?
To fix CVE-2018-4271, you should update your software to iOS 11.4.1 or later, tvOS 11.4.1 or later, watchOS 4.3.2 or later, Safari 11.1.2 or later, iTunes 12.8 or later for Windows, and iCloud for Windows 7.6 or later.
Where can I find more information about CVE-2018-4271?
You can find more information about CVE-2018-4271 on the Apple Support website: [https://support.apple.com/en-us/HT208936](https://support.apple.com/en-us/HT208936), [https://support.apple.com/en-us/HT208932](https://support.apple.com/en-us/HT208932), [https://support.apple.com/en-us/HT208935](https://support.apple.com/en-us/HT208935).