Product Security

Security Advisories

Qualcomm takes security seriously and we strive to address security-related issues quickly and appropriately.

Arbitrary Memory Access from QSEE Secure Applications (CVE-2016-5349)

Advisory ID
QTIR-2017-0001-1

CVE ID(s)
CVE-2016-5349

Product Technology Area
TrustZone

Description
The following issue has been identified and addressed in QTI-authored code:

CVE-2016-5349
When secure applications inside Qualcomm Secure Execution Environment (QSEE) receive memory addresses from a high level operating system (HLOS) such as Linux Android, those address have previously been verified as belonging to HLOS memory space rather than QSEE memory space, but they were not verified to be from HLOS user space rather than kernel space. This lack of verification could lead to privilege escalation within the HLOS.

Access Vector: Local
Security Risk: High
Vulnerability: CWE-20 Improper Input Validation

Note
The corresponding HLOS kernel driver needs to implement changes that provide the required memory address information to QSEE, see Insufficient Memory Address Information to prevent Arbitrary Memory Access from QSEE Secure Applications (CVE-2016-5349).

Timeline
Reported: June 10th, 2016
Confirmed: June 10th, 2016
Patch available and customers notified: December 13th, 2016
Advisory released: March 06th, 2017

Affected Products
Snapdragon 800, 600, 400, 200

Acknowledgement
Qualcomm Technologies Inc. (QTI) thanks Google’s Android Security Team and Aravind Machiry (UCSB) for reporting this issue and working with QTI to help improve the security of QTI products.

Revisions
Initial Revision

Contact
product-security@qualcomm.com