Juniper Junos OS: 2021-04 Security Bulletin: Junos OS: Multiple HTTP/2 vulnerabilities are resolved in remote procedure calls using gRPC remote procedure calls (gRPC) framework (JSA11167) (multiple CVEs)
8
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
08/13/2019
04/16/2021
04/16/2021
03/21/2022
Description
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.
Solution(s)
- juniper-junos-os-upgrade-latest
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