CVE-2022-20239: Critical severity android vulnerability
remappfnrange' here may map out of size kernel memory (for example, may map the kernel area), and because the 'vma->vmpageprot' can also be controlled by userspace, so userspace may map the kernel area to be writable, which is easy to be exploitedProduct: AndroidVersions: Android SoCAndroid ID: A-233972091
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2022-20239?
The severity of CVE-2022-20239 is classified as critical due to its potential to allow userspace to map the kernel area as writable.
How do I fix CVE-2022-20239?
To fix CVE-2022-20239, ensure that you are running the latest patched version of the Android operating system.
Which versions of Android are affected by CVE-2022-20239?
CVE-2022-20239 affects various versions of the Android operating system, particularly those using vulnerable configurations.
What types of attacks can exploit CVE-2022-20239?
CVE-2022-20239 can be exploited by privileged userspace applications to gain write access to kernel memory.
Is there a workaround for CVE-2022-20239 if I cannot update my device?
Currently, there are no known workarounds for CVE-2022-20239, so updating is the best protection.