Bug ID 743257: Fix block size insecurity init and assign

Last Modified: May 29, 2024

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

Known Affected Versions:, 13.1.1,,,,, 13.1.3,

Fixed In:

Opened: Sep 07, 2018

Severity: 3-Major


After an HA failover the block size insecurity checks were creating conditions for an infinite loop. This causes tmm to be killed by sod daemon via SIGABRT.


Traffic disrupted while tmm restarts.


Rare not reproducible.


There is no workaround.

Fix Information

The init and assign of block size insecurity were modified and debug checks added. A possible loop condition in ssl renegotiation was removed.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips