CVE-2022-20239 - 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

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CRITICAL

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

Published Aug 9, 2022

9.8

CRITICAL

CVSS 3.1

EPSS 0.29%

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

Affected products

Vendor n/a Product Android Default
n/a
- Version
  Android SoC
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

n/a

Android

n/a

Version	Status	Constraints
Android SoC	affected	-

Remediation

No remediation recorded yet.

Weaknesses (2)

CWE-269

Improper Privilege Management

CWE-610

References (2)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-25499
Advisory
https://source.android.com/security/bulletin/2022-08-01
x_refsource_MISCVendor Advisory

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-25499		Advisory
https://source.android.com/security/bulletin/2022-08-01		x_refsource_MISCVendor Advisory