Google Android Linux Kernel msm-audio-effects-q6-v2.c integer overflow

Summaryinfo

A vulnerability was found in Google Android. It has been rated as critical. Impacted is an unknown function of the file msm-audio-effects-q6-v2.c of the component Linux Kernel. This manipulation causes integer overflow. This vulnerability appears as CVE-2017-11085. The attack requires local access. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability has been found in Google Android (Smartphone Operating System) (version unknown) and classified as critical. Affected by this vulnerability is an unknown function of the file msm-audio-effects-q6-v2.c of the component Linux Kernel. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In android for MSM, Firefox OS for MSM, QRD Android, with all Android releases from CAF using the Linux kernel, an integer overflow leading to a buffer overflow due to improper bound checking in msm_audio_effects_virtualizer_handler, file msm-audio-effects-q6-v2.c

The bug was discovered 11/06/2017. The weakness was presented 11/16/2017 (Website). It is possible to read the advisory at source.android.com. This vulnerability is known as CVE-2017-11085 since 07/07/2017. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem.

See VDB-104449, VDB-109492, VDB-109498 and VDB-109499 for similar entries. Be aware that VulDB is the high quality 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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Entryinfo

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