CVE-2016-5340 Information

Description

The is_ashmem_file function in drivers/staging/android/ashmem.c in a certain Qualcomm Innovation Center (QuIC) Android patch for the Linux kernel 3.x mishandles pointer validation within the KGSL Linux Graphics Module which allows attackers to bypass intended access restrictions by using the /ashmem string as the dentry name.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://source.android.com/security/bulletin/2016-10-01.html http://www.securityfocus.com/bid/92374 http://www.securitytracker.com/id/1036763 https://source.codeaurora.org/quic/la/kernel/msm-3.10/commit/?id=06e51489061e5473b4e2035c79dcf7c27a6f75a6 https://www.codeaurora.org/invalid-path-check-ashmem-memory-file-cve-2016-5340

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8