Bug ID 851353: Connection reset with incorrect error code when invalid or malformed header is received in an HTTP/3 request

Last Modified: May 29, 2024

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

Known Affected Versions:
15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,,, 15.1.9,, 15.1.10,,,

Fixed In:

Opened: Nov 19, 2019

Severity: 3-Major


Invalid pseudo header or malformed header in an HTTP/3 request should result in resetting of the stream with error code of HTTP3_GENERAL_PROTOCOL_ERROR. Instead the connection is reset with HTTP3_UNEXPECTED_FRAME error code.


Connection is reset with incorrect error code, instead of just the individual stream.


-- Virtual server with QUIC, HTTP/3, HTTP, SSL, and httprouter profiles. -- HTTP/3 header frame from client with invalid or malformed header is received.


No workaround.

Fix Information

Correct return code is now propagated from the parser function.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips