Use of insufficiently random values in Google Android - CVE-2019-1997

 

Use of insufficiently random values in Google Android - CVE-2019-1997

Published: February 28, 2019 / Updated: August 8, 2020


Vulnerability identifier: #VU36093
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-1997
CWE-ID: CWE-330
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Google
Affected software:
Google Android

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

In random_get_bytes of random.c, there is a possible degradation of randomness due to an insecure default value. This could lead to local information disclosure via an insecure wireless connection with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android-9. Android ID: A-117508900.


How to mitigate CVE-2019-1997

Install update from vendor's website.

Sources