A vulnerability, which was classified as critical, has been found in Google Android (Smartphone Operating System) (affected version not known). This issue affects some unknown functionality of the component Linux Kernel. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, double free of memory allocation is possible in Kernel when it explicitly tries to free that memory on driver probe failure, since memory allocated is automatically freed on probe.

The bug was discovered 09/04/2018. The weakness was published 09/18/2018 (Website). It is possible to read the advisory at source.android.com. The identification of this vulnerability is CVE-2018-11276 since 05/18/2018. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

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.

Similar entries are available at 124170, 124172, 124178 and 124180.

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Type

• Smartphone Operating System

Vendor

• Google

Name

• Android

License

• free

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