CVE-2022-20239 Privilege escalation in Android
A flaw in Android's memory mapping allows userspace to map kernel memory as writable, enabling privilege escalation and code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-20239?
CVE-2022-20239 is a medium-severity vulnerability in Google Android, published on 9 Aug 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the 'vma->vm_page_prot' 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
Which versions are affected by CVE-2022-20239?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2022-20239?
Apply the vendor's patch.
Is CVE-2022-20239 being exploited?
There is no known exploitation of CVE-2022-20239 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-233972091, ASB-A-233972091, GHSA-px2h-r39c-38r8, U-1883877.