Time-of-check Time-of-use (TOCTOU) Race Condition in Google Android
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-0238 |
| CWE-ID | CWE-367 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Google Android Operating systems & Components / Operating system |
| Vendor |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Time-of-check Time-of-use (TOCTOU) Race Condition
EUVDB-ID: #VU45858
Risk: Low
CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-0238
CWE-ID:
CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Exploit availability: No
DescriptionThe 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
MitigationInstall update from vendor's website.
Vulnerable software versionsGoogle Android: 8.0 - 10
External linkshttp://source.android.com/security/bulletin/2020-08-01
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
