Last Modified: Oct 16, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
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, 13.1.1.4, 13.1.1.5, 13.1.3, 13.1.3.1, 13.1.3.2, 13.1.3.3, 13.1.3.4, 13.1.3.5, 13.1.3.6, 13.1.4, 13.1.4.1, 13.1.5, 13.1.5.1, 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, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 15.0.0, 15.0.1
Fixed In:
15.1.0, 15.0.1.1, 14.1.2.5
Opened: Jul 26, 2019 Severity: 3-Major
When a client resets the HTTP/2 stream, the BIG-IP system may have several DATA frames ready to send. It drops these frames but does not account back those in a connection-send window. It can reduce this window to the value when no DATA frames are sent over this connection until the client updates the send window.
For any subsequent request after the send window loses enough size, DATA frames with payload are not sent to the client over the affected HTTP/2 connection.
-- BIG-IP system has a virtual server. -- HTTP/2 profile is assigned to it.
None.
BIG-IP systems correctly handle dropping DATA frames accounting back their lengths in a connection-send window.