A vulnerability was found in Intel Graphics Driver (Hardware Driver Software) (the affected version is unknown). It has been classified as critical. Affected is an unknown code of the component Content Protection HECI Service. The manipulation with an unknown input leads to a type conversion vulnerability. CWE is classifying the issue as CWE-704. The product does not correctly convert an object, resource, or structure from one type to a different type. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Type Confusion in Content Protection HECI Service in Intel Graphics Driver allows unprivileged user to elevate privileges via local access.

The bug was discovered 12/12/2017. The weakness was disclosed 12/12/2017 (Website). The advisory is available at security-center.intel.com. This vulnerability is traded as CVE-2017-5717 since 02/01/2017. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. The reason for this vulnerability is this part of code:

HRESULT StartIo(VARIANT In, VARIANT* Out) {
   CComSafeArray<char> array;
   array::CopyFrom(In.parray);
   // Work with array
   ...
}

A public exploit has been developed by Google Security Research and been published 1 weeks after the advisory. The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370842 (Intel Graphics Driver Type Confusion vulnerability in Content Protection HECI Service (INTEL-SA-00095)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (43373).

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Type

• Hardware Driver Software

Vendor

• Intel

Name

• Graphics Driver

License

• commercial

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