SB2018120617 - Input validation error in Google, Google Android

Description

This security bulletin contains information about 1 vulnerability.

1) Input validation error (CVE-ID: CVE-2018-9547)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 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/E:U/U:Clear

The vulnerability allows a local authenticated user to execute arbitrary code.

In unflatten of GraphicBuffer.cpp, there is a possible bad fd close due to improper input validation. This could lead to local escalation of privilege in the system server with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-8.1 Android-9. Android ID: A-114223584.

Remediation

Install update from vendor's website.

References

• http://www.securityfocus.com/bid/106067
• https://source.android.com/security/bulletin/2018-12-01