Google Android Debug Log Event integer underflow

Summaryinfo

A vulnerability categorized as critical has been discovered in Google Android. This impacts an unknown function of the component Debug Log Event Handler. The manipulation results in integer underflow. This vulnerability was named CVE-2018-11301. The attack needs to be approached locally. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Google Android (Smartphone Operating System) (affected version unknown). It has been classified as critical. Affected is an unknown functionality of the component Debug Log Event Handler. The manipulation with an unknown input leads to a integer underflow vulnerability. CWE is classifying the issue as CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, lack of check on buffer length while processing debug log event from firmware can lead to an integer overflow.

The bug was discovered 09/04/2018. The weakness was presented 09/18/2018 (Website). The advisory is shared for download at source.android.com. This vulnerability is traded as CVE-2018-11301 since 05/18/2018. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/16/2023). 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 14 days. During that time the estimated underground price was around $5k-$25k.

Applying a patch is able to eliminate this problem.

See VDB-124170, VDB-124172, VDB-124175 and VDB-124178 for similar entries. 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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