CVE-2015-9208 Information

Description

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear IPQ4019 MDM9206 MDM9607 MDM9635M MDM9640 MDM9645 MSM8909W SD 210/SD 212/SD 205 SD 400 SD 410/12 SD 615/16/SD 415 SD 800 and SD 810 the function tzbsp_pil_verify_sig() does not strictly check that the pointer to ELF and program headers and hash segment is within secure memory. It only checks that the address is not in non-secure memory. A given address range can overlap with both secure and non-secure regions - hence if such an address is passed in it would not pass the non-secure range check and would be considered valid by the function even though that memory area could be modified by the non-secure side.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/103671 https://source.android.com/security/bulletin/2018-04-01

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8