Buffer overread in sme_ChangeCountryCode invoked by iw_set_privresp (CVE-2016-6680)
Release Date:
November 11, 2016
Affected Projects:
Android for MSMFirefox OS for MSMQRD Android
Advisory ID:
QCIR-2016-00052-1
CVE ID(s):
Summary:
CVE-2016-6680 When processing iw_set_priv(), user data is copied from wrqu->data.pointer to cmd. If wrqu->data.pointer points to "COUNTRY" and wrqu->data.length is 7, uninitialized kernel heap data can be leaked since the memory allocated for cmd is 7 bytes, but country_code=cmd+8 points to unallocated kernel heap memory. country_code is copied to pMsg (3 bytes) that can leak uninitialized data.
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
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