Bug ID 737368: Fingerprint cookie large value may result in tmm core.

Last Modified: May 29, 2024

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

Known Affected Versions:
13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5, 13.1.0.6, 13.1.0.7, 13.1.0.8, 13.1.1, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1

Fixed In:
14.1.0, 14.0.1.1, 13.1.1.2

Opened: Jul 18, 2018

Severity: 3-Major

Symptoms

The JavaScript component calculates part of the fingerprint cookie value. In some rare cases, large values are generated and may result in tmm core.

Impact

Memory overrun, tmm core in some cases. Traffic disrupted while tmm restarts.

Conditions

A large value (more than 35 characters) inside the fingerprint cookie.

Workaround

N/A

Fix Information

FPS will check the value and truncate it if it exceeds the maximum length.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips