A vulnerability, which was classified as critical, has been found in Google Android (Smartphone Operating System) (unknown version). Affected by this issue is an unknown code block of the file binder.c. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In several functions of binder.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-120025789.

The bug was discovered 11/23/2018. The weakness was released 02/28/2019 as A-120025789 (Website). The advisory is shared for download at source.android.com. This vulnerability is handled as CVE-2019-2000 since 12/10/2018. The attack needs to be approached locally. The requirement for exploitation is a simple authentication. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 97 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-131264, VDB-131265, VDB-131266 and VDB-131267.

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Type

• Smartphone Operating System

Vendor

• Google

Name

• Android

License

• free

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