CVE-2022-32818 The issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.5
This can be a problem when an app has direct access to the kernel. This issue was addressed with improved memory handling. An app may be able to leak sensitive kernel state. This issue affects most users on every Mac but was most prevalent on 10.13.6 and 10.13.5. An app may be able to leak sensitive kernel state. This issue affects most users on every Mac but was most prevalent on 10.13.6 and 10.13.5. An app may be able to leak sensitive kernel state. This issue affects most users on every Mac but was most prevalent on 10.13.6 and 10.13.5. An app may be able to leak sensitive kernel state. This issue affects most users on every Mac but was most prevalent on 10.13.6 and 10.13.5. An app may be able to leak sensitive kernel state. This issue affects most users on every Mac but was most prevalent on 10.13.6 and 10.13.5. An app may be able to leak sensitive kernel state. This issue affects most users on every Mac but was most prevalent on 10.13.6 and 10.13.5. An app may be able to leak sensitive kernel state. This issue affects most users on every Mac but was most prevalent on 10.13.6 and 10.13.5. An app may be able to leak sensitive kernel state. This issue affects most users on every Mac but was most prevalent on
Getting Started: How to check if your Mac is vulnerable to Meltdown and Spectre
If you are using a Mac from one of these models, there's no need to worry. But if you're not sure, or if you have any doubt, then the following steps will help you determine whether your Mac is affected by Meltdown and Spectre.
- Open "Apple Menu"
- Go to "System Preferences"
- Click on the "Security & Privacy" icon
- Check the box that says, "Enable Kernel Address Space Layout Randomization (KASLR)". This will minimize your risk of being affected by Meltdown and Spectre.
How do I know if I’m affected?
If you are an affected user:
- You can use the kernel debugger command line tool to determine if your kernel has been compromised.
- You may also be able to leak sensitive kernel state using the memory debug tool.
Impact of CVE-2018-1121
An app may be able to leak sensitive kernel state. This issue affects most users on every Mac but was most prevalent on 10.13.6 and 10.13.5. An app may be able to leak sensitive kernel state. This issue affects most users on every Mac but was most prevalent on 10.13.6 and 10.13.5
This can cause various vulnerabilities with the use of macOS, including:
- A user may be able to read process memory or perform arbitrary code execution using a "write" syscall
- A user may be able to obtain keychain data from another user
How do I find my Mac version?
To find your Mac's version, open the Apple menu and choose System Information. If you need help checking your system information, please contact Apple Support at https://support.apple.com/en-us
Please note: Your Mac may not be affected by this issue if it does not have an Intel processor or a Thunderbolt 3 port.
Timeline
Published on: 09/23/2022 19:15:00 UTC
Last modified on: 09/27/2022 18:26:00 UTC