SB2021110302 - Privilege escalation in Google Android
Published: November 3, 2021
Security Bulletin ID
SB2021110302
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2021-1048)
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 update from vendor's website.