SB2017040410 - Null pointer dereference in Linux kernel

Description

This security bulletin contains information about 1 vulnerability.

1) Null pointer dereference (CVE-ID: CVE-2016-5870)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local user to execute arbitrary code.

The msm_ipc_router_close function in net/ipc_router/ipc_router_socket.c in the ipc_router component for the Linux kernel 3.x, as used in Qualcomm Innovation Center (QuIC) Android contributions for MSM devices and other products, allow attackers to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact by triggering failure of an accept system call for an AF_MSM_IPC socket.

Remediation

Install update from vendor's website.

References

• http://www.securityfocus.com/bid/97414
• https://source.codeaurora.org/quic/la//kernel/msm-3.18/commit/?id=71fe5361cbef34e2d606b79e8936a910a3e95566
• https://www.codeaurora.org/null-pointer-dereference-when-processing-accept-system-call-user-process-afmsmipc-sockets-cve-2016