Bug ID 1969889: Expired certificates sent to clients by tmm due to network time synchronization

Last Modified: Aug 29, 2025

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

Known Affected Versions:
17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2

Opened: Jun 20, 2025

Severity: 3-Major

Symptoms

Clients are receiving certificates that are expired or invalid, leading to SSL handshake failures accompanied by security warnings.

Impact

Clients receiving expired/invalid certificates causes traffic disruption.

Conditions

-- A virtual server configured with ClientSSL and ServerSSL profiles, both having SSL forward proxy enabled, experiences a change in system time (time advanced) due to a network glitch or issue.

Workaround

From TMSH, Running the following command will delete the cached certificates associated with the specified virtual server and client SSL profile. (tmos)# delete ltm clientssl-proxy cached-certs virtual <name> clientssl-profile <name>

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips