Permissions, Privileges, and Access Controls in Google Android - CVE-2019-2123

 

Permissions, Privileges, and Access Controls in Google Android - CVE-2019-2123

Published: September 6, 2019 / Updated: August 8, 2020


Vulnerability identifier: #VU35570
CSH Severity: Low
CVSS v4.0: 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
CVE-ID: CVE-2019-2123
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Google
Affected software:
Google Android

Detailed vulnerability description

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

In execTransact of Binder.java in Android 7.1.1, 7.1.2, 8.0, 8.1, and 9, there is a possible local execution of arbitrary code in a privileged process due to a memory overwrite. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.


How to mitigate CVE-2019-2123

Install update from vendor's website.

Sources