CVE-2018-4409: Input Validation
WebKit. A resource exhaustion issue was addressed with improved input validation.
Other sources
A resource exhaustion issue was addressed with improved input validation. This issue affected versions prior to iOS 12.1, tvOS 12.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.
Credit
Affected Software
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2018-4398
- CVE-2018-4394
- CVE-2018-4371
- CVE-2018-4420
- CVE-2018-4413
- CVE-2018-4419
- CVE-2018-4381
- CVE-2018-4369
- CVE-2018-4372
- CVE-2018-4382
- CVE-2018-4386
- CVE-2018-4392
- CVE-2018-4416
- CVE-2018-4409
- CVE-2018-4378
- CVE-2018-4368
- CVE-2018-4374
- CVE-2018-4377
- CVE-2018-4373
- CVE-2018-4375
- CVE-2018-4376
- CVE-2018-4384
- CVE-2018-4339
- CVE-2018-4365
- CVE-2018-4366
- CVE-2018-4367
- CVE-2018-4427
- CVE-2018-4390
- CVE-2018-4391
- CVE-2018-4388
- CVE-2018-4400
- CVE-2018-4387
- CVE-2018-4385
Frequently Asked Questions
What is CVE-2018-4409?
CVE-2018-4409 is a vulnerability in WebKit that allows for a resource exhaustion issue due to improved input validation.
Which software versions are affected by CVE-2018-4409?
Versions prior to iOS 12.1, tvOS 12.1, Safari 12.0.1, iTunes 12.9.1, and iCloud for Windows 7.8 are affected by CVE-2018-4409.
What is the severity of CVE-2018-4409?
CVE-2018-4409 has a severity value of 6.5, indicating a medium severity.
How can I fix CVE-2018-4409?
To fix CVE-2018-4409, update your software to iOS 12.1 or later, tvOS 12.1 or later, Safari 12.0.1 or later, iTunes 12.9.1 or later, or iCloud for Windows 7.8 or later.
Where can I find more information about CVE-2018-4409?
You can find more information about CVE-2018-4409 on the Apple support website at the following links: [Link 1](https://support.apple.com/kb/HT209192), [Link 2](https://support.apple.com/kb/HT209194), [Link 3](https://support.apple.com/kb/HT209196).