Use of insufficiently random values in NetBSD - #VU51432
Published: March 12, 2021
Vulnerability identifier: #VU51432
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: N/A
CWE-ID: CWE-330
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
NetBSD
Remediation
Install updates from vendor's website.