A vulnerability, which was classified as critical, was found in Google Android (Smartphone Operating System) (the affected version unknown). This affects the function copy_process of the file fork.c. The manipulation with an unknown input leads to a double free vulnerability. CWE is classifying the issue as CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In copy_process of fork.c, there is possible memory corruption due to a double free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android kernel Android ID: A-111081202 References: N/A

The bug was discovered 10/01/2018. The weakness was presented 10/02/2018 (Website). It is possible to read the advisory at source.android.com. This vulnerability is uniquely identified as CVE-2018-9513 since 04/05/2018. Attacking locally is a requirement. A authentication is necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/29/2020). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem.

See 124744 and 124745 for similar entries.

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• Smartphone Operating System

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• Google

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• Android

License

• free

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