PT-2023-17734 · Google · Android

Published 2023-02-01 · Updated 2023-03-06 · CVE-2023-20945

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Android versions Android-10

Description In the phNciNfc MfCreateXchgDataHdr function of phNxpExtns MifareStd.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android version Android-10, update to a version that includes the fix for the issue in phNciNfc MfCreateXchgDataHdr of phNxpExtns MifareStd.cpp. As a temporary workaround, consider restricting access to the phNxpExtns MifareStd.cpp module to minimize the risk of exploitation.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ASB-A-246932269

CVE-2023-20945

Affected Products

Android

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2023-20945 · Security Note
• https://source.android.com/security/bulletin/2023-02-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-246932269 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-20945 · Vendor Advisory
• https://t.me/cibsecurity/59117 · Telegram Post
• https://android.googlesource.com/platform/packages/apps/Nfc/+/4a964908ff0bd91d93f96cdc26f7377420c58273 · Note