SB2020010831 - Incorrect default permissions in Google, Google Android
Published: January 8, 2020 Updated: August 8, 2020
Security Bulletin ID
SB2020010831
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incorrect default permissions (CVE-ID: CVE-2020-0009)
The vulnerability allows a local authenticated user to manipulate data.
In calc_vm_may_flags of ashmem.c, there is a possible arbitrary write to shared memory due to a permissions bypass. This could lead to local escalation of privilege by corrupting memory shared between processes, with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-142938932
Remediation
Install update from vendor's website.