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Red Hat OpenShift: CVE-2019-9515: HTTP/2: flood using SETTINGS frames results in unbounded memory growth

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Red Hat OpenShift: CVE-2019-9515: HTTP/2: flood using SETTINGS frames results in unbounded memory growth

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
08/13/2019
Created
10/09/2019
Added
10/08/2019
Modified
03/13/2020

Description

Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

Solution(s)

  • linuxrpm-upgrade-sriov-network-device-plugin

References

  • linuxrpm-upgrade-sriov-network-device-plugin

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