Bug ID 517510: HTTP monitor might add extra CR/LF pairs to HTTP body when supplied

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP LTM(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, 11.5.1, 11.5.2, 11.5.3, 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, 11.6.1 HF1, 11.5.4

Opened: Apr 10, 2015

Severity: 3-Major

Related Article: K77256432

Symptoms

When supplying HTTP containing body text to the HTTP monitor, the system might append extra CR/LF pairs to the end.

Impact

This may cause malformed POST or PUT messages.

Conditions

HTTP monitor with text specifying HTTP body text.

Workaround

Limited work-around entails providing an alternative HTTP health check that does not require PUTting or POSTing a body.

Fix Information

The HTTP monitor has been fixed to avoid adding additional CR/LF pairs, except for the case where only headers are supplied and there are insufficient CR/LF supplied to terminate the headers.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips