Last Modified: May 29, 2024
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 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, 13.1.1.2, 13.1.1.3, 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, 14.0.1.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5
Fixed In:
15.0.0, 14.1.0.6, 13.1.1.4
Opened: Dec 05, 2018 Severity: 3-Major
This is specific to HTTP/2. In some rare cases, the header field value string can have one or more of its prefix characters removed by the BIG-IP system.
A header such as: x-info: very_long_string that has whitespace characters may be sent to the client as: x-info: ery_long_string that has whitespace characters
-- The header field value string is exceptionally long, and has embedded whitespace characters. -- HTTP/2 is used.
None.
The BIG-IP system no longer removes the prefix characters from very long HTTP/2 header field value strings containing embedded whitespace characters.