Some HTTP/2 implementations are vulnerable to a flood of...
High severity
Unreviewed
Published
May 24, 2022
to the GitHub Advisory Database
•
Updated Feb 1, 2023
Description
Published by the National Vulnerability Database
Aug 13, 2019
Published to the GitHub Advisory Database
May 24, 2022
Last updated
Feb 1, 2023
Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.
References