Bug ID 554977: TMM might crash on failed SSL handshake

Last Modified: Jul 12, 2023

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

Known Affected Versions:
11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0

Fixed In:
11.5.4 HF2

Opened: Oct 29, 2015

Severity: 3-Major

Related Article: K64401960

Symptoms

SSL handshake failures may crash in ssl_verify().

Impact

Traffic disrupted while tmm restarts.

Conditions

Certain types of failed SSL handshakes in versions 11.5.0 through 11.5.4.

Workaround

Modifying serverssl cipher string to exclude ECDHE_RSA and ECDHE_ECDSA might help prevent the crash.

Fix Information

This release fixes a TMM crash that might be encountered during the SSL handshake.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips