Google Android on Qualcomm RPMB Listener memory corruption

Summaryinfo

A vulnerability was found in Google Android on Qualcomm and classified as critical. The affected element is an unknown function of the component RPMB Listener. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2016-10484. It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Google Android on Qualcomm (Smartphone Operating System) (the affected version is unknown). It has been rated as critical. Affected by this issue is an unknown code of the component RPMB Listener. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear IPQ4019, MDM9206, MDM9607, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 820A, SD 835, and SDX20, if a RPMB listener is registered with a very small buffer size, the calculation of the maximum transfer size for read and write operations may underflow, resulting in buffer overflow.

The bug was discovered 04/05/2018. The weakness was published 04/18/2018 (Website). The advisory is shared for download at source.android.com. This vulnerability is handled as CVE-2016-10484 since 08/16/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 01/27/2020). 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 13 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 103671†). Similar entries are available at VDB-83180, VDB-105483, VDB-105484 and VDB-105488. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Google

Name

• Android

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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