Last Modified: May 29, 2024
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1
Fixed In:
15.1.2, 14.1.4
Opened: Jul 29, 2020 Severity: 3-Major
When an HTTP/2 profile is configured on the client side, chunked responses are always sent unchunked. When a connection to a client is congested, BIG-IP systems may send the END_STREAM flag before transmitting a whole payload.
A browser may not receive the whole payload, or it may not recognize that the payload has been delivered fully (partially prior to the DATA frame with END_STREAM flag, partially after the frame).
-- A virtual server with an HTTP/2 profile configured on the client side. -- A server responds with a chunked response.
Configure an HTTP profile on the client side with a value of 'unchunk' on the response-chunking option.
BIG-IP systems no longer send a DATA frame with END_STREAM flag prematurely when a connection to a client is congested.