Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in NetBSD - #VU22999
Published: November 26, 2019
Vulnerability identifier: #VU22999
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-338
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: NetBSD Foundation, Inc
Affected software:
NetBSD
NetBSD
Detailed vulnerability description
The vulnerability allows a local user to predict values of random generator.
The vulnerability exists due to en error in kern.arandom implementation. A local user that can obtain kernel PRNG state used by kern.arandom can predict future outputs of kern.arandom.
Remediation
Install updates from vendor's website.