Integer overflow in Pixel - CVE-2021-39736
Published: July 11, 2022 / Updated: July 11, 2022
Vulnerability identifier: #VU65108
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-39736
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Google
Affected software:
Pixel
Pixel
Detailed vulnerability description
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to integer overflow in prepare_io_entry and prepare_response of lwis_ioctl.c and lwis_periodic_io.c. A local application with system privileges can trigger integer overflow and escalate privileges on the system.
How to mitigate CVE-2021-39736
Install updates from vendor's website.