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HIGH

Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service

Published Aug 13, 2019

Description

Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.

Affected products

Remediation

Red Hat statement

The golang package in Red Hat OpenStack Platform 9 Operational Tools will not be updated for this flaw because it is in technical preview and is retiring as of 24.Aug.2019. This issue did not affect the versions of grafana(embeds golang) as shipped with Red Hat Ceph Storage 2 and Red Hat Gluster Storage 3 as they did not include the support for HTTP/2. The following storage product versions are affected because they include the support for HTTP/2 in: * golang as shipped with Red Hat Gluster Storage 3, Red Hat Ceph Storage 2 and Red Hat Ceph Storage 3 * heketi(embeds golang) as shipped with Red Hat Gluster Storage 3 * grafana(embeds golang and grpc) as shipped with Red Hat Ceph Storage 3 This flaw has no available mitigation for packages golang and nodejs. Both packages will be updated once the available fixes are released for Red Hat Enterprise Linux and Red Hat Software Collections. The nodejs RPM shipped in OpenShift Container Platform 3.9 and 3.10 is not affected by this flaw as it does not contain the vulnerable code. All OpenShift Container Platform RPMs and container images that are built with Go and support HTTP/2 are vulnerable to this flaw.

Metrics

Weaknesses (1)

CWE-400

Uncontrolled Resource Consumption

References (87)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner certcc
Published Aug 13, 2019
Updated Aug 4, 2024
Reserved Mar 1, 2019
Link CVE-2019-9512
CISA Vulnrichment
Updated n/a
NVD
Status Modified
Modified Jun 17, 2026
Link CVE-2019-9512
Red Hat
Severity Important
Public date Aug 13, 2019
Links CVE-2019-9512 - Bugzilla
GHSA-HGR8-6H9X-F7Q9