PT-2022-6531 · Google+4 · Android Kernel+4

Published 2022-11-08 · Updated 2023-08-08 · CVE-2022-20572

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Android kernel

Description The issue is related to a missing permission check in the verity target of dm-verity-target.c, which could allow modification of read-only files. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android kernel, consider applying a patch from the upstream kernel to fix the missing permission check in the verity target of dm-verity-target.c. As a temporary workaround, consider restricting access to the verity target function until a patch is available.

Fix

Incorrect Authorization

Missing Authorization

Weakness Enumeration

CWE-863

CWE-862

Related Identifiers

BDU:2023-02113

CESA-2022_7444

CESA-2022_7683

CVE-2022-20572

OESA-2022-2160

OESA-2022-2161

OESA-2022-2162

RHSA-2022:7444

RHSA-2022:7683

RHSA-2022:7933

RHSA-2022:8267

RHSA-2022_7444

RHSA-2022_7683

RHSA-2022_7933

RHSA-2022_8267

USN-6001-1

USN-6013-1

USN-6014-1

Affected Products

Android Kernel

Astra Linux

Centos

Red Hat

Ubuntu

References · 102

• https://ubuntu.com/security/CVE-2021-4149 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-39188 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-47519 · Security Note
• https://osv.dev/vulnerability/USN-6001-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-20572 · Security Note
• https://ubuntu.com/security/CVE-2021-26401 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-20568 · Security Note
• https://ubuntu.com/security/CVE-2022-36879 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-4095 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-20572 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-1205 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-4129 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-41218 · Security Note
• https://ubuntu.com/security/CVE-2022-1195 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-0394 · Vendor Advisory