Bug ID 609084: Max number of chunks not configurable above 1000 chunks

Last Modified: Oct 07, 2023

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

Known Affected Versions:
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, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2

Fixed In:
13.1.0, 13.0.0, 12.1.2 HF1, 11.6.1 HF2

Opened: Aug 04, 2016

Severity: 4-Minor

Related Article: K03808942

Symptoms

If you want to support requests larger than 1000 chunks, the request is blocked and the system posts the following message in the ASM event log: Unparsable request content Chunks number exceeds request chunks limit: 1000.

Impact

Requests that are valid from the server side are being rejected.

Conditions

This occurs when the request exceeds 1000 chunks.

Workaround

None.

Fix Information

This release adds an internal parameter "request_max_chunks_number" to enable configuring a greater than 1000 max number of chunks. The default value is 1000

Behavior Change

This release adds an internal parameter "request_max_chunks_number" to enable configuring a greater than 1000 max number of chunks. The default value is 1000

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips