#VU51432 Use of insufficiently random values in NetBSD

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Main Vulnerability Database Vulnerabilities #VU51432

#VU51432 Use of insufficiently random values in NetBSD

Published: March 12, 2021


Vulnerability identifier: #VU51432
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-330
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
NetBSD
Software vendor:
NetBSD Foundation, Inc

Description

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to IP ID randomization is not enabled by default for IPv4 and IPv6 fragments and TCP ISS random generation has an information leak. A remote attacker can analyze packets received from the system and use the obtained information to spoof packets.


Remediation

Install updates from vendor's website.

External links