CVE-2022-20238 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
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-20238?
CVE-2022-20238 is a critical vulnerability in Google Android, published on 13 Jul 2022. An attacker can exploit it over the internet without logging in, 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-233154555
Weakness: CWE-119
Which versions are affected by CVE-2022-20238?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2022-20238?
Apply the vendor's patch.
Is CVE-2022-20238 being exploited?
There is no known exploitation of CVE-2022-20238 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-233154555, ASB-A-233154555, GHSA-94vg-wrxf-f4p9, U-1883892.