SB2025011657 - Red Hat Enterprise Linux update for NetworkManager



SB2025011657 - Red Hat Enterprise Linux update for NetworkManager

Published: January 16, 2025 Updated: April 2, 2025

Security Bulletin ID SB2025011657
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Man-in-the-Middle (MitM) attack (CVE-ID: CVE-2024-3661)

CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to way the VPN client handles routes advertised by the DHCP server. A remote attacker with access to the local network can route the victim's traffic to a malicious server instead of sending it via a secured channel. 

This vulnerability was dubbed "TunnelVision".


Remediation

Install update from vendor's website.