Google Android 8.0/8.1/9.0/10.0 Bluetooth Server aes_cmac.cc aes_cmac integer overflow

Summaryinfo

A vulnerability was found in Google Android 8.0/8.1/9.0/10.0 and classified as critical. This issue affects the function aes_cmac of the file aes_cmac.cc of the component Bluetooth Server. The manipulation results in integer overflow. This vulnerability was named CVE-2020-0117. The attack may be performed from remote. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Android 8.0/8.1/9.0/10.0 (Smartphone Operating System). Affected is the function aes_cmac of the file aes_cmac.cc of the component Bluetooth Server. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In aes_cmac of aes_cmac.cc, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution in the bluetooth server 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-151155194

The weakness was presented 06/10/2020. This vulnerability is traded as CVE-2020-0117 since 10/17/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 06/11/2020). It is expected to see the exploit prices for this product increasing in the near future.

Applying a patch is able to eliminate this problem.

See VDB-156471, VDB-156470, VDB-156469 and VDB-156467 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Google

Name

• Android

Version

• 8.0
• 8.1
• 9.0
• 10.0

License

• free

Website

• Vendor: https://www.google.com/

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Once again VulDB remains the best source for vulnerability data.

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