CVE-2018-4431: Infoleak
First published: Wed Dec 05 2018(Updated: )
A memory initialization issue was addressed with improved memory handling. This issue affected versions prior to iOS 12.1.1, macOS Mojave 10.14.2, tvOS 12.1.1, watchOS 5.1.2.
Credit: An independent security researcher has reported this vulnerability to Beyond Security’s SecuriTeam Secure Disclosure program product-security@apple.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| tvOS | <12.1.1 | 12.1.1 |
| macOS Mojave | <10.14.2 | 10.14.2 |
| macOS High Sierra | ||
| macOS High Sierra | ||
| Apple iOS, iPadOS, and watchOS | <5.1.2 | 5.1.2 |
| Apple iOS and iPadOS | <12.1.1 | 12.1.1 |
| iPhone OS | <12.1.1 | |
| Apple iOS and macOS | <10.14.2 | |
| tvOS | <12.1.1 | |
| Apple iOS, iPadOS, and watchOS | <5.1.2 |
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Reference Links
- https://support.apple.com/kb/HT209340
- https://support.apple.com/kb/HT209341
- https://support.apple.com/kb/HT209342
- https://support.apple.com/kb/HT209343
- https://support.apple.com/en-us/HT209340 (Advisory)
- https://support.apple.com/en-us/HT209342 (Advisory)
- https://support.apple.com/en-us/HT209343 (Advisory)
- https://support.apple.com/en-us/HT209341 (Advisory)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2018-4303
- CVE-2018-4427
- CVE-2018-4431
- CVE-2018-4448
- CVE-2018-4460
- CVE-2018-4435
- CVE-2018-4447
- CVE-2018-4461
- CVE-2018-4436
- CVE-2018-4441
- CVE-2018-4442
- CVE-2018-4443
- CVE-2018-4438
- CVE-2018-4444
- CVE-2018-4437
- CVE-2018-4464
- CVE-2018-4462
- CVE-2018-4463
- CVE-2018-4465
- CVE-2018-4467
- CVE-2018-4452
- CVE-2018-4434
- CVE-2018-4456
- CVE-2018-4421
- CVE-2018-4449
- CVE-2018-4450
- CVE-2018-4429
- CVE-2018-4430
- CVE-2018-4446
- CVE-2018-4439
- CVE-2018-4440
- CVE-2018-4445
- CVE-2018-4428
Frequently Asked Questions
What is CVE-2018-4431?
CVE-2018-4431 is a vulnerability related to a memory initialization issue in the kernel of Apple devices.
Which devices are affected by CVE-2018-4431?
CVE-2018-4431 affects iOS versions prior to 12.1.1, macOS Mojave versions prior to 10.14.2, tvOS versions prior to 12.1.1, and watchOS versions prior to 5.1.2.
What is the severity of CVE-2018-4431?
The severity of CVE-2018-4431 is medium with a severity value of 5.5.
How can I fix CVE-2018-4431?
To fix CVE-2018-4431, update your device to iOS 12.1.1 or later, macOS Mojave 10.14.2 or later, tvOS 12.1.1 or later, or watchOS 5.1.2 or later.
Where can I find more information about CVE-2018-4431?
You can find more information about CVE-2018-4431 on the Apple support page: [link](https://support.apple.com/kb/HT209340).
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