CVE-2022-20571 — MEDIUM (6.7)

Vulnerability Description

In extract_metadata of dm-android-verity.c, there is a possible way to corrupt kernel memory due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-234030265References: Upstream kernel

CVSS Score

6.7

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	-

Related Weaknesses (CWE)

CWE-416

References

https://source.android.com/security/bulletin/pixel/2022-12-01PatchVendor Advisory
https://source.android.com/security/bulletin/pixel/2022-12-01PatchVendor Advisory

FAQ

What is CVE-2022-20571?

CVE-2022-20571 is a vulnerability with a CVSS score of 6.7 (MEDIUM). In extract_metadata of dm-android-verity.c, there is a possible way to corrupt kernel memory due to a use after free. This could lead to local escalation of privilege with System execution privileges ...

How severe is CVE-2022-20571?

CVE-2022-20571 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-20571?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android.