CVE-2024-27919: falha de alta gravidade em envoyproxy envoy
HTTP/2: memory exhaustion due to CONTINUATION frame flood
Publicada em · Atualizada em
43Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.5epss 87%
probabilidade de exploração
87%top 1% das CVEs
exploração observada
nãonenhuma fonte reporta
O que os fabricantes declaram (VEX)
Declarações oficiais dos fabricantes em formato CSAF/VEX: se o produto deles está afetado, já corrigido ou descartado — e por quê. É afirmação do fabricante, não juízo do Vexday.
Red Hatdocumento VEX ↗
Não afetado
21 produtos (26 componentes) — porque o código vulnerável não está presente no produto
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 · e outros 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
Produtos afetados
envoyproxy · envoyCVEs relacionadas — envoyproxy envoy
No mesmo produto, das mais perigosas para as 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%
Referências
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