PT-2017-2129 · Qualcomm+3 · Qualcomm Secure Execution Environment+3

Published 2017-05-16 · Updated 2017-07-11 · CVE-2014-9936

Positive Technologies (AI Summary)

CVSS v2.0

7.6

High

Base vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Android releases from CAF using the Linux kernel

Description A time-of-check time-of-use race condition could potentially exist in an authentication routine in TrustZone. This issue is caused by synchronization errors when using a shared resource in the Qualcomm Secure Execution Environment microprogram for Android from the CAF repository. Exploitation of this issue may allow a remote attacker to impact the confidentiality, integrity, and availability of protected information.

Recommendations For Android releases from CAF using the Linux kernel, at the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

BDU:2017-01306

CVE-2014-9936

Affected Products

Android

Linux Kernel

Qualcomm Secure Execution Environment

Trustzone

References · 5

• https://source.android.com/security/bulletin/2017-04-01 · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-01306 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2014-9936 · Security Note
• http://securitytracker.com/id/1038201 · Note
• http://securityfocus.com/bid/97329 · Note