Security features bypass in Google Android - CVE-2023-21102

 

Security features bypass in Google Android - CVE-2023-21102

Published: May 16, 2023


Vulnerability identifier: #VU76224
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-21102
CWE-ID: CWE-254
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Google
Affected software:
Google Android

Detailed vulnerability description

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists die to a logic error within the __efi_rt_asm_wrapper() function in efi-rt-wrapper.S. A local application can bypass the shadow stack protection and execute arbitrary code with elevated privileges.


How to mitigate CVE-2023-21102

Install updates from vendor's website.

Sources