Bug ID 607713: SIP Parser fails header with multiple sequential separators inside quoted string.

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP LTM(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, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1

Fixed In:
13.0.0, 12.1.2, 11.6.1 HF2

Opened: Jul 28, 2016

Severity: 3-Major

Related Article: K13543454

Symptoms

SIP Parser fails header with multiple sequential separators inside quoted string.

Impact

The SIP parser flags the message as an error. If this occurs in a quote within the attribute, it should be allowed, but it will still fail, Valid SIP messages are failing to be parsed.

Conditions

If a SIP header contains multiple attribute separators ',' or ';' in an attribute.

Workaround

None.

Fix Information

The SIP parser has been improved to ignore multiple sequential separators if within quotes.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips