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CVE-2021-21419

Status Candidate

Overview

Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet process.

Related Files

Red Hat Security Advisory 2022-6133-01
Posted Sep 1, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-6133-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.10.30. Issues addressed include a code execution vulnerability.

tags | advisory, code execution
systems | linux, redhat
advisories | CVE-2021-21419, CVE-2021-21623, CVE-2021-21639, CVE-2021-21640, CVE-2021-21648, CVE-2021-25735, CVE-2021-25737, CVE-2021-3114, CVE-2021-3121, CVE-2021-3636, CVE-2022-26945, CVE-2022-30321, CVE-2022-30322, CVE-2022-30323
SHA-256 | 47f26f7ad1e05a54a92a71bb0d831160505f278c7f554cef8297d99f8e72cc0a
Red Hat Security Advisory 2021-5071-01
Posted Dec 10, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-5071-01 - Eventlet is a networking library written in Python. It achieves high scalability by using non-blocking io while at the same time retaining high programmer usability by using coroutines to make the non-blocking io operations appear blocking at the source code level. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, python
systems | linux, redhat
advisories | CVE-2021-21419
SHA-256 | 50fe298ac47eb901a386ecd9eb2bc7b0461f012ae16446e85fea898046de6b78
Red Hat Security Advisory 2021-3361-01
Posted Aug 31, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3361-01 - The Migration Toolkit for Containers enables you to migrate Kubernetes resources, persistent volume data, and internal container images between OpenShift Container Platform clusters, using the MTC web console or the Kubernetes API. Issues addressed include a memory exhaustion vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-20271, CVE-2021-21419, CVE-2021-21623, CVE-2021-21639, CVE-2021-21640, CVE-2021-21648, CVE-2021-22543, CVE-2021-22555, CVE-2021-22918, CVE-2021-25735, CVE-2021-25737, CVE-2021-27218, CVE-2021-3114, CVE-2021-3121, CVE-2021-33195, CVE-2021-33196, CVE-2021-33197, CVE-2021-33198, CVE-2021-34558, CVE-2021-3516, CVE-2021-3517, CVE-2021-3518, CVE-2021-3520, CVE-2021-3537, CVE-2021-3541, CVE-2021-3609, CVE-2021-3636
SHA-256 | fa8792e889cba4980e5e69cc42c59e3108310c2072dfb34fffb0c3a8644d9099
Red Hat Security Advisory 2021-2438-01
Posted Jul 28, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2438-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. Issues addressed include bypass, code execution, denial of service, open redirection, resource exhaustion, and remote shell upload vulnerabilities.

tags | advisory, remote, denial of service, shell, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2016-2183, CVE-2020-15106, CVE-2020-15112, CVE-2020-15113, CVE-2020-15114, CVE-2020-15136, CVE-2020-26160, CVE-2020-26541, CVE-2020-28469, CVE-2020-28500, CVE-2020-28852, CVE-2020-7774, CVE-2021-20206, CVE-2021-20271, CVE-2021-20291, CVE-2021-21419, CVE-2021-21623, CVE-2021-21639, CVE-2021-21640, CVE-2021-21648, CVE-2021-22133, CVE-2021-23337, CVE-2021-23362, CVE-2021-23368, CVE-2021-23382, CVE-2021-25735
SHA-256 | 44f1588b77c38919a903c4dffe0b5b58cf96f91a447694471f228851a5f89f6d
Red Hat Security Advisory 2021-2437-01
Posted Jul 28, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2437-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.8.2. Issues addressed include bypass, cross site scripting, and denial of service vulnerabilities.

tags | advisory, denial of service, vulnerability, xss
systems | linux, redhat
advisories | CVE-2021-21419, CVE-2021-21623, CVE-2021-21639, CVE-2021-21640, CVE-2021-21648, CVE-2021-25735, CVE-2021-25737, CVE-2021-3114, CVE-2021-3121, CVE-2021-3636
SHA-256 | 7ec5b49853d7057879102f37d070eea1a55cf6c1c169311c047cfd931c993a81
Ubuntu Security Notice USN-4956-1
Posted May 17, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4956-1 - It was discovered that Eventlet incorrectly handled certain requests. An attacker could possibly use this issue to cause a denial of service.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2021-21419
SHA-256 | cb5fb373169c8ba0b611b9138b1e83c585bf8948ce087b4e6cf1f5d4b0dddb29
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