CVE-2024-27919: fallo de gravedad alta en envoyproxy envoy
HTTP/2: memory exhaustion due to CONTINUATION frame flood
Publicada el · Actualizada el
43Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.5epss 87%
probabilidad de explotación
87%top 1% de las CVE
explotación observada
noninguna fuente lo reporta
Lo que declaran los fabricantes (VEX)
Declaraciones oficiales de los fabricantes en formato CSAF/VEX: si su producto está afectado, ya corregido o descartado — y por qué. Es afirmación del fabricante, no juicio de Vexday.
Red Hatdocumento VEX ↗
No afectado
21 productos (26 componentes) — porque el código vulnerable no está presente en el producto
Red Hat OpenShift Container Platform 4 · OpenShift API for Data Protection · Red Hat Advanced Cluster Management for Kubernetes 2 · Red Hat OpenShift Data Science (RHODS) · Custom Metric Autoscaler operator for Red Hat Openshift · y otros 16
Envoy is a cloud-native, open-source edge and service proxy. In versions 1.29.0 and 1.29.1, theEnvoy HTTP/2 protocol stack is vulnerable to the flood of CONTINUATION frames. Envoy's HTTP/2 codec does not reset a request when header map limits have been exceeded. This allows an attacker to send an sequence of CONTINUATION frames without the END_HEADERS bit set causing unlimited memory consumption. This can lead to denial of service through memory exhaustion. Users should upgrade to versions 1.29.2 to mitigate the effects of the CONTINUATION flood. Note that this vulnerability is a regression in Envoy version 1.29.0 and 1.29.1 only. As a workaround, downgrade to version 1.28.1 or earlier or disable HTTP/2 protocol for downstream connections.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Productos afectados
envoyproxy · envoyCVEs relacionadas — envoyproxy envoy
En el mismo producto, de las más peligrosas a las menos.
CVE-2024-30255MEDIUMHTTP/2: CPU exhaustion due to CONTINUATION frame floodEPSS 87.8%CVE-2021-29492HIGHBypass of path matching rules using escaped slash charactersEPSS 66.2%CVE-2021-32777HIGHIncorrect concatenation of multiple value request headers in ext-authz extensionEPSS 3.3%CVE-2021-21378HIGHJWT authentication bypass with unknown issuer tokenEPSS 1.7%CVE-2022-29225HIGHZip bomb vulnerability in EnvoyEPSS 1.6%CVE-2021-32781HIGHContinued processing of requests after locally generated responseEPSS 1.3%
Referencias
https://github.com/envoyproxy/envoy/commit/57a02565532c18eb9df972a3e8974be3ae59f2d5https://github.com/envoyproxy/envoy/security/advisories/GHSA-gghf-vfxp-799rhttps://www.kb.cert.org/vuls/id/421644http://www.openwall.com/lists/oss-security/2024/04/03/16http://www.openwall.com/lists/oss-security/2024/04/05/3