SB2020081135 - Time-of-check Time-of-use (TOCTOU) Race Condition in Google Android
Published: August 11, 2020 Updated: August 30, 2020
Security Bulletin ID
SB2020081135
Severity
Low
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) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2020-0238)
The vulnerability allows a local authenticated user to execute arbitrary code.
In updatePreferenceIntents of AccountTypePreferenceLoader, there is a possible confused deputy attack due to a race condition. This could lead to local escalation of privilege and launching privileged activities with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-8.0Android ID: A-150946634
Remediation
Install update from vendor's website.