Bug ID 437627: TMM may crash if fastl4 vs has fragmeneted pkt

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.0.0, 11.6.0 HF4, 11.5.2, 11.4.1 HF9, 11.4.0 HF6, 11.2.1 HF16

Opened: Nov 12, 2013

Severity: 3-Major

Related Article: K17155

Symptoms

TMM may crash if a fast L4 profile has a fragmented packet

Impact

Traffic disrupted while tmm restarts.

Conditions

fastl4 configure incoming fragmented packets

Workaround

In fast L4 profile, enable option "Reassemble IP Fragments"

Fix Information

Improved handling of a fragmented packet that could cause a crash if using a fastL4 profile.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips