#VU57890 Use-after-free in Google Android - CVE-2021-1048
Published: November 3, 2021
Vulnerability identifier: #VU57890
Vulnerability risk: High
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:A/U:Amber
CVE-ID: CVE-2021-1048
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Google Android
Google Android
Software vendor:
Google
Description
The vulnerability allows a malicious application to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in the Android kernel component within the epoll_loop_check_proc() function. A malicious application can trigger a use-after-free error and execute arbitrary code with kernel privileges.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install updates from vendor's website.