CVE-2022-20239

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

10/08/2022

Last modified:

20/10/2025

Description

remap_pfn_range&#39; here may map out of size kernel memory (for example, may map the kernel area), and because the &#39;vma->vm_page_prot&#39; 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

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High