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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)

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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)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
08/13/2019
Created
04/16/2021
Added
04/16/2021
Modified
04/16/2021

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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