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Category:   Device (VoIP/Phone/FAX)  >   Google Android Vendors:   Google
Android IPC Router Kernel Module Race Condition Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1035765
SecurityTracker URL:  http://securitytracker.com/id/1035765
CVE Reference:   CVE-2016-2059   (Links to External Site)
Date:  May 6 2016
Impact:   User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Android. A local user can obtain elevated privileges on the target system.

A local user can issue specially crafted IOCTL calls to exploit a race condition in the IPC router kernel module to bind to a control port and potentially gain elevated privileges on the target system.

The vulnerability resides in the msm_ipc_router_bind_control_port() function in 'net/ipc_router/ipc_router_core.c'.

Code Aurora Forum releases of Android (with contributions from Qualcomm Innovation Center (QuIC)) are affected.

Adam Donenfeld et al (from Check Point Software Technologies Ltd.) reported this vulnerability.

Impact:   A local user can obtain elevated privileges on the target system.
Solution:   The vendor (Qualcomm Innovation Center) has issued a source code fix, available at:

https://us.codeaurora.org/cgit/quic/la/kernel/msm-3.18/commit/?id=9e8bdd63f7011dff5523ea435433834b3702398d

The vendor's advisory is available at:

https://www.codeaurora.org/projects/security-advisories/linux-ipc-router-binding-any-port-control-port-cve-2016-2059

Vendor URL:  www.codeaurora.org/projects/security-advisories/linux-ipc-router-binding-any-port-control-port-cve-2016-2059 (Links to External Site)
Cause:   Access control error, State error

Message History:   None.


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