Critical severity · published Aug 9, 2022
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…
9.8
CVSS
0.3%
EPSS
No
On KEV
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:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AN
Android · Google
Android SoC · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-20239
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-20239
Vendor Advisory
https://source.android.com/security/bulletin/2022-08-01
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