Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service
43Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 83%
exploitation probability
83%top 1% of all CVEs
observed exploitation
nono source reports it
What the vendors declare (VEX)
Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.
Red HatVEX document ↗
Affected
11 products (109 components)
Red Hat OpenShift Container Platform 3.10 · Red Hat Storage 3 · Red Hat OpenShift Container Platform 3.11 · Red Hat Ceph Storage 3 · Red Hat OpenShift Application Runtimes · and others 6
none_available: Affected
Fixed
35 products (1,496 components)
Red Hat Enterprise Linux AppStream (v. 8) · Red Hat OpenShift Container Platform 4.1 · Red Hat OpenShift Container Platform 3.11 · Red Hat JBoss EAP 7.2 for RHEL 7 Server · Red Hat JBoss EAP 7.2 for RHEL 6 Server · and others 30
Not affected
20 products (158 components) — because the vulnerable code is not present in the product
Red Hat OpenShift Container Platform 3.11 · Red Hat OpenShift Container Platform 4.1 · Red Hat Software Collections · CloudForms Management Engine 5 · Red Hat Enterprise Linux 8 · and others 15
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
n/a · n/aReferences
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00076.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00002.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00011.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00021.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00038.htmlhttps://access.redhat.com/errata/RHSA-2019:2594https://access.redhat.com/errata/RHSA-2019:2661https://access.redhat.com/errata/RHSA-2019:2682https://access.redhat.com/errata/RHSA-2019:2690https://access.redhat.com/errata/RHSA-2019:2726