Time-of-check Time-of-use (TOCTOU) Race Condition in Google Android - CVE-2017-0412

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

An elevation of privilege vulnerability in the Framework APIs could enable a local malicious application to execute arbitrary code within the context of a privileged process. This issue is rated as High because it could be used to gain local access to elevated capabilities, which are not normally accessible to a third-party application. Product: Android. Versions: 7.0, 7.1.1. Android ID: A-33039926.

Affected software

How to mitigate CVE-2017-0412

Links to Public Exploits and PoC-codes

• Exploit #6424 - Android - Inter-Process munmap due to Race Condition in ashmem (June 17, 2021)
• Exploit #3883 - Google Android - android.util.MemoryIntArray Ashmem Race Conditions (August 9, 2020)

External References

• http://www.securityfocus.com/bid/96056
• http://www.securitytracker.com/id/1037798
• https://source.android.com/security/bulletin/2017-02-01.html
• https://www.exploit-db.com/exploits/41355/

Related Security Bulletins

• Time-of-check Time-of-use (TOCTOU) Race Condition in Google, Google Android