CVE-2021-43825

mediumPriorität · verfolgen · 30EPSS 0.009 · 59. PerzentilDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.88% (59th) EPSS
CVSS 5 · medium
Is it mine?
53 products
Prüfe deine Angriffsfläche
Who says so?
6 sources
cnnvd · enisa_euvd · osv · cert_bund

EPSS · bewertet 2026-10-22

Envoy is an open source edge and service proxy, designed for cloud-native applications. Sending a locally generated response must stop further processing of request or response data. Envoy tracks the amount of buffered request and response data and aborts the request if the amount of buffered data is over the limit by sending 413 or 500 responses. However when the buffer overflows while response is processed by the filter chain the operation may not be aborted correctly and result in accessing a freed memory block. If this happens Envoy will crash resulting in a denial of service.

01

Behebungen

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

Ein Hersteller-Fix ist verfügbar.

  • Behobenservicemesh-proxy-0:2.1.2-4.el8.ppc64le as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
  • Behobenservicemesh-proxy-0:2.1.2-4.el8.s390x as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
  • Behobenservicemesh-proxy-0:2.1.2-4.el8.src as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
  • Behobenservicemesh-proxy-0:2.1.2-4.el8.x86_64 as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
  • Behobenservicemesh-proxy-debuginfo-0:2.1.2-4.el8.ppc64le as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
  • Behobenservicemesh-proxy-debuginfo-0:2.1.2-4.el8.s390x as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
  • Behobenservicemesh-proxy-debuginfo-0:2.1.2-4.el8.x86_64 as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
  • Behobenservicemesh-proxy-debugsource-0:2.1.2-4.el8.ppc64le as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
  • Behobenservicemesh-proxy-debugsource-0:2.1.2-4.el8.s390x as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
  • Behobenservicemesh-proxy-debugsource-0:2.1.2-4.el8.x86_64 as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
  • Behobenservicemesh-proxy-wasm-0:2.1.2-4.el8.noarch as a component of OpenShift Service Mesh 2.1redhat_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-2022:1275
02

cvss

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

7.5
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5–7.5

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
v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:Lsecondary · ENISA EU
v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:Lsecondary · security-advisories@github.comAusnutzbarkeit 2.8 · Auswirkung 2.7
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
03

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Trackcoordinatorcisa_ssvcUS
04

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-416USCWE-416US
05

betroffene Produkte (53)

Betroffene Produkte und Versionsbereiche.

20 von 53 angezeigt
06

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

  • RHSA-2022:1275Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.1.2 security update2022-04-07csaf · redhat_csafUS

    Red Hat OpenShift Service Mesh 2.1.2 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.

  • WID-SEC-W-2022-0970Red Hat OpenShift: Mehrere SchwachstellenDeutsch2022-04-07csaf · cert_bundDE

    Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um einen Denial-of-Service-Zustand zu verursachen und Sicherheitsmaßnahmen zu umgehen.

  • BIT-envoy-2021-43825Use-after-free in Envoy2024-03-06vendor · osvUS

    Envoy is an open source edge and service proxy, designed for cloud-native applications. Sending a locally generated response must stop further processing of request or response data. Envoy tracks the amount of buffered request and response data and aborts the request if the amount of buffered data is over the limit by sending 413 or 500 responses. However when the buffer overflows while response is processed by the filter chain the operation may not be aborted correctly and result in accessing a freed memory block. If this happens Envoy will crash resulting in a denial of service.

07

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

08

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdosvcert_bundnvdredhat_csafNVDCVE.orgMITRE
veröffentlicht 2022-02-22geändert 2026-06-17
09

Referenzen (11)

Externe Belege — Patches, Meldungen, Analysen.

scry

Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.

Kostenloser Scan