Use-after-free in usf driver (CVE-2016-8481)

Release Date:

February 14, 2017

Affected Projects:

Android for MSMFirefox OS for MSMQRD Android

Advisory ID:

QCIR-2017-00007-1

CVE ID(s):

CVE-2016-8481

Summary:

The following security vulnerabilities have been identified: CVE-2016-8481 When the usf driver is accessed asynchronously, and/or incorrect parameters are sent through a specific IOCTL, a global variable can be released. A subsequent or asynchronously-parallel IOCTL call lacked a NULL check and would dereference the now-NULL pointer.

Access Vector: Local

Security Risk: Medium

Access Vector: Local

Affected Versions:

All Android releases from CAF using the Linux kernel.

Patch:

We advise customers to apply the following patches:

Individual Patches

• CVE-2016-8481: https://www.codeaurora.org/gitweb/quic/la/?p=kernel/msm-4.4.git;a=commit;h=c8c16b7406c68a5a9f35c5afbfcafd893e197425

Acknowledgement:

This issue was reported to Google by an external security researcher. Qualcomm Innovation Center, Inc. (QuIC) thanks Google for bringing this issue to QuIC's attention.

Revisions:

Initial revision

Contact: