Permissions, Privileges, and Access Controls in Samsung Mobile Firmware - CVE-2021-25338
Published: November 10, 2022
Vulnerability identifier: #VU69228
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-2021-25338
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Samsung
Affected software:
Samsung Mobile Firmware
Samsung Mobile Firmware
Detailed vulnerability description
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to improper memory access control in RKP. A local application can write some part of RKP EL2 memory region using compromised kernel.
How to mitigate CVE-2021-25338
Install updates from vendor's website.