CVE-2022-20239 — Externally Controlled Reference to a Resource in Another Sphere in Google Android

CWE-610 — Externally Controlled Reference to a Resource in Another SphereCWE-269 — Improper Privilege Management4 documents4 sources
Severity
9.8CRITICALNVD
EPSS
0.1%
top 76.81%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Google Android
Timeline
PublishedAug 10
Latest updateAug 11

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages1 packages

🔴Vulnerability Details

2
GHSA
GHSA-px2h-r39c-38r8: '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 contr↗2022-08-11
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OSV
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 contr↗2022-08-01
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📋Vendor Advisories

1
Android
CVE-2022-20239: VSP↗2022-08-01
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