Google Android WLAN memory corruption

Summaryinfo

A vulnerability, which was classified as critical, was found in Google Android. The affected element is an unknown function of the component WLAN. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2018-11836. The attack needs to be performed locally. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Google Android (Smartphone Operating System) (affected version not known) and classified as critical. Affected by this issue is some unknown functionality of the component WLAN. 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 all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, improper length check can lead to out-of-bounds access in WLAN function.

The bug was discovered 09/04/2018. The weakness was released 09/18/2018 (Website). The advisory is shared for download at source.android.com. This vulnerability is handled as CVE-2018-11836 since 06/07/2018. The exploitation is known to be easy. The attack needs to be approached locally. 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 $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.

Entries connected to this vulnerability are available at VDB-124162, VDB-124171, VDB-124198 and VDB-124252. 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/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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