Use-after-free in Google Android - CVE-2023-21255
Published: July 5, 2023
Vulnerability identifier: #VU77990
CSH Severity: Low
CVSSv4.0: 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-2023-21255
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Google Android
Google Android
Software vendor:
Google
Description
The vulnerability allows a local application to escalate privileges on the system.
The
vulnerability exists due to insufficient validation of user-supplied
input within the binder_transaction_buffer_release() function in Binder subsystem in Android kernel. A local application
can trigger a use-after-fee error and execute arbitrary code with elevated privileges.
Remediation
Install updates from vendor's website.