Bug ID 1469221: SSH access issues due to line wrapping in known_hosts file

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP TMOS(all modules)

Known Affected Versions:
17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3

Opened: Dec 26, 2023

Severity: 3-Major

Symptoms

Line wrapping in the known_hosts file introduced the incorrect whitespace in /config/ssh/ssh_known_hosts (generated by /etc/sysconfig/sshd-functions) this makes known_hosts entry non-functional because the contents of the file are space delimited.

Impact

SSH access issues to the localhost. ex: "ssh localhost" or "ssh slot#" or "ssh 127.3.0.whatever"

Conditions

Problems occur due to the removal of the "ssh-rsa" host key algorithm in v17.1.0.1 for FIPS-140-3 support.

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips