CVE-2021-32781

mediumPriorität · verfolgen · 30EPSS 0.013 · 71. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.33% (71st) EPSS

CVSS 5 · medium

Is it mine?

67 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · bewertet 2026-10-27

Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions after Envoy sends a locally generated response it must stop further processing of request or response data. However when local response is generated due the internal buffer overflow while request or response is processed by the filter chain the operation may not be stopped completely and result in accessing a freed memory block. A specifically constructed request delivered by an untrusted downstream or upstream peer in the presence of extensions that modify and increase the size of request or response bodies resulting in a Denial of Service when using extensions that modify and increase the size of request or response bodies, such as decompressor filter. Envoy versions 1.19.1, 1.18.4, 1.17.4, 1.16.5 contain fixes to address incomplete termination of request processing after locally generated response. As a workaround disable Envoy's decompressor, json-transcoder or grpc-web extensions or proprietary extensions that modify and increase the size of request or response bodies, if feasible.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

Behobenservicemesh-proxy-0:2.0.7-3.el8.ppc64le as a component of OpenShift Service Mesh 2.0redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:3272
Behobenservicemesh-proxy-0:2.0.7-3.el8.s390x as a component of OpenShift Service Mesh 2.0redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:3272
Behobenservicemesh-proxy-0:2.0.7-3.el8.src as a component of OpenShift Service Mesh 2.0redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:3272
Behobenservicemesh-proxy-0:2.0.7-3.el8.x86_64 as a component of OpenShift Service Mesh 2.0redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/latest/service_mesh/v2x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:3272
Behobenservicemesh-proxy-0:1.1.17-2.el8.ppc64le as a component of OpenShift Service Mesh 1.1redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/4.8/service_mesh/v1x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:3273
Behobenservicemesh-proxy-0:1.1.17-2.el8.s390x as a component of OpenShift Service Mesh 1.1redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/4.8/service_mesh/v1x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:3273
Behobenservicemesh-proxy-0:1.1.17-2.el8.src as a component of OpenShift Service Mesh 1.1redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/4.8/service_mesh/v1x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:3273
Behobenservicemesh-proxy-0:1.1.17-2.el8.x86_64 as a component of OpenShift Service Mesh 1.1redhat_csaf
The OpenShift Service Mesh Release Notes provide information on the features and known issues: https://docs.openshift.com/container-platform/4.8/service_mesh/v1x/servicemesh-release-notes.html
https://access.redhat.com/errata/RHSA-2021:3273

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

8.6

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5–8.6

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU

v3.18.6highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · security-advisories@github.comAusnutzbarkeit 3.9 · Auswirkung 4

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Red Hat Product Security US

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-120USprimärCWE-416USCWE-476US

betroffene Produkte (67)

Betroffene Produkte und Versionsbereiche.

envoyproxy envoy1.16.0, → 1.16.5enisa_euvdEU
envoyproxy envoy1.17.0, → 1.17.4enisa_euvdEU
envoyproxy envoy1.18.0, → 1.18.4enisa_euvdEU
envoyproxy envoy1.19.0, → 1.19.1enisa_euvdEU
envoyproxy envoy1.16.0 → 1.16.5nvdUScpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
envoyproxy envoy1.17.0 → 1.17.4nvdUScpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
envoyproxy envoy1.18.0 → 1.18.4nvdUScpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
envoyproxy envoy= 1.19.0nvdUScpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
Bitnami envoy1.16.0 → 1.16.5osvUSpkg:bitnami/envoy
Bitnami envoy1.17.0 → 1.17.4osvUSpkg:bitnami/envoy
Bitnami envoy1.18.0 → 1.18.4osvUSpkg:bitnami/envoy
Bitnami envoy1.19.0 → 1.19.1osvUSpkg:bitnami/envoy
servicemesh-0:1.1.17-3.el8.ppc64le as a component of OpenShift Service Mesh 1.1alle Versionennot affectedredhat_csafUS
servicemesh-0:1.1.17-3.el8.s390x as a component of OpenShift Service Mesh 1.1alle Versionennot affectedredhat_csafUS
servicemesh-0:1.1.17-3.el8.src as a component of OpenShift Service Mesh 1.1alle Versionennot affectedredhat_csafUS
servicemesh-0:1.1.17-3.el8.x86_64 as a component of OpenShift Service Mesh 1.1alle Versionennot affectedredhat_csafUS
servicemesh-0:2.0.7-3.el8.ppc64le as a component of OpenShift Service Mesh 2.0alle Versionennot affectedredhat_csafUS
servicemesh-0:2.0.7-3.el8.s390x as a component of OpenShift Service Mesh 2.0alle Versionennot affectedredhat_csafUS
servicemesh-0:2.0.7-3.el8.src as a component of OpenShift Service Mesh 2.0alle Versionennot affectedredhat_csafUS
servicemesh-0:2.0.7-3.el8.x86_64 as a component of OpenShift Service Mesh 2.0alle Versionennot affectedredhat_csafUS

20 von 67 angezeigt

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

RHSA-2021:3272Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.0.7.1 security update2021-08-25csaf · redhat_csafUS
An update for servicemesh and servicemesh-proxy is now available for OpenShift Service Mesh 2.0. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
RHSA-2021:3273Red Hat Security Advisory: Red Hat OpenShift Service Mesh 1.1.17.1 security update2021-08-25csaf · redhat_csafUS
An update for servicemesh and servicemesh-proxy is now available for OpenShift Service Mesh 1.1. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
BIT-envoy-2021-32781Continued processing of requests after locally generated response2024-03-06vendor · osvUS
Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions after Envoy sends a locally generated response it must stop further processing of request or response data. However when local response is generated due the internal buffer overflow while request or response is processed by the filter chain the operation may not be stopped completely and result in accessing a freed memory block. A specifically constructed request delivered by an untrusted downstream or upstream peer in the presence of extensions that modify and increase the size of request or response bodies resulting in a Denial of Service when using extensions that modify and increase the size of request or response bodies, such as decompressor filter. Envoy versions 1.19.1, 1.18.4, 1.17.4, 1.16.5 contain fixes to address incomplete termination of request processing after locally generated response. As a workaround disable Envoy's decompressor, json-transcoder or grpc-web extensions or proprietary extensions that modify and increase the size of request or response bodies, if feasible.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd osv nvd redhat_csaf NVD CVE.org MITRE

veröffentlicht 2021-08-24geändert 2026-06-17

verwandt (5,669)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2025-43520US	medium5.5OT kritisch	0.43% (37th)	KEV	2025-12-12
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS So…
CVE-2025-20333US	—OT kritisch	71.2% (99th)	KEV	2025-09-25
A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an aut…
CVE-2025-39682US	critical9.8OT kritisch	3.25% (88th)	KEV	2025-09-05
In the Linux kernel, the following vulnerability has been resolved: tls: fix handling of zero-length records on the rx_list Each recvmsg() call must process either - only contig…
CVE-2025-31277US	—OT kritisch	1.66% (77th)	KEV	2025-07-30
The issue was addressed with improved memory handling. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Proc…
CVE-2025-24985US	—OT kritisch	3.89% (90th)	KEV	2025-03-11
Integer overflow or wraparound in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.

+5664 weitere

Referenzen (9)

Externe Belege — Patches, Meldungen, Analysen.

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