Google Android Linux Kernel wma_ndp_end_response_event_handler len_end_rsp integer overflow

Summaryinfo

A vulnerability was found in Google Android. It has been classified as critical. This vulnerability affects the function wma_ndp_end_response_event_handler of the component Linux Kernel. Performing a manipulation of the argument len_end_rsp as part of Variable results in integer overflow. This vulnerability is reported as CVE-2017-18070. The attack requires a local approach. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Google Android (Smartphone Operating System) (unknown version). This affects the function wma_ndp_end_response_event_handler of the component Linux Kernel. The manipulation of the argument len_end_rsp as part of a Variable 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. The summary by CVE is:

In wma_ndp_end_response_event_handler(), the variable len_end_rsp is a uint32 which can be overflowed if the value of variable "event->num_ndp_end_rsp_per_ndi_list" is very large which can then lead to a heap overwrite of the heap object end_rsp in all Android releases from CAF (Android for MSM, Firefox OS for MSM, QRD Android) using the Linux Kernel.

The bug was discovered 05/11/2018. The weakness was disclosed 06/12/2018 (Website). The advisory is shared at source.android.com. This vulnerability is uniquely identified as CVE-2017-18070 since 01/22/2018. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 32 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem.

The entries VDB-117580, VDB-117581, VDB-119393 and VDB-119394 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Smartphone Operating System

Vendor

• Google

Name

• Android

License

• free

Website

• Vendor: https://www.google.com/

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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