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CVE-2021-3450

Status Candidate

Overview

The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain. It is not set by default. Starting from OpenSSL version 1.1.1h a check to disallow certificates in the chain that have explicitly encoded elliptic curve parameters was added as an additional strict check. An error in the implementation of this check meant that the result of a previous check to confirm that certificates in the chain are valid CA certificates was overwritten. This effectively bypasses the check that non-CA certificates must not be able to issue other certificates. If a "purpose" has been configured then there is a subsequent opportunity for checks that the certificate is a valid CA. All of the named "purpose" values implemented in libcrypto perform this check. Therefore, where a purpose is set the certificate chain will still be rejected even when the strict flag has been used. A purpose is set by default in libssl client and server certificate verification routines, but it can be overridden or removed by an application. In order to be affected, an application must explicitly set the X509_V_FLAG_X509_STRICT verification flag and either not set a purpose for the certificate verification or, in the case of TLS client or server applications, override the default purpose. OpenSSL versions 1.1.1h and newer are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1h-1.1.1j).

Related Files

Red Hat Security Advisory 2021-2130-01
Posted Jun 23, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2130-01 - Windows Container Support for Red Hat OpenShift allows you to deploy Windows container workloads running on Windows Server containers. Issues addressed include a man-in-the-middle vulnerability.

tags | advisory
systems | linux, redhat, windows
advisories | CVE-2016-10228, CVE-2017-14502, CVE-2019-25013, CVE-2019-2708, CVE-2019-3842, CVE-2019-9169, CVE-2020-13434, CVE-2020-13776, CVE-2020-15358, CVE-2020-24977, CVE-2020-27618, CVE-2020-28196, CVE-2020-29361, CVE-2020-29362, CVE-2020-29363, CVE-2020-8231, CVE-2020-8284, CVE-2020-8285, CVE-2020-8286, CVE-2020-8927, CVE-2021-20305, CVE-2021-25736, CVE-2021-27219, CVE-2021-3326, CVE-2021-3449, CVE-2021-3450
SHA-256 | cee16136d7421cbe5ca19256caf3668d7fa40f347e02a96e5696e4c7709cca44
Red Hat Security Advisory 2021-2041-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-2041-01 - Red Hat OpenShift Container Storage is software-defined storage integrated with and optimized for the Red Hat OpenShift Container Platform. Red Hat OpenShift Container Storage is a highly scalable, production-grade persistent storage for stateful applications running in the Red Hat OpenShift Container Platform. Issues addressed include bypass and denial of service vulnerabilities.

tags | advisory, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2020-25678, CVE-2020-26160, CVE-2020-26289, CVE-2020-28362, CVE-2020-7608, CVE-2020-7774, CVE-2020-8565, CVE-2021-20305, CVE-2021-3114, CVE-2021-3139, CVE-2021-3449, CVE-2021-3450, CVE-2021-3528
SHA-256 | 207485ff1991adec31c517e8d791b7e6d4e2eb37215ab5caba07707d934fa380
Red Hat Security Advisory 2021-1448-01
Posted Apr 29, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1448-01 - Red Hat Advanced Cluster Management for Kubernetes 2.0.10 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which resolve some security issues and bugs. Issues addressed include a code execution vulnerability.

tags | advisory, code execution
systems | linux, redhat
advisories | CVE-2020-0466, CVE-2020-15586, CVE-2020-16845, CVE-2020-27152, CVE-2020-28362, CVE-2020-28374, CVE-2021-20305, CVE-2021-23358, CVE-2021-26708, CVE-2021-27363, CVE-2021-27364, CVE-2021-27365, CVE-2021-3347, CVE-2021-3449, CVE-2021-3450
SHA-256 | e0ed9dcea65dc8c6aed72a7323bfdf194a8e68c45019b280ca356c117d319f9c
Red Hat Security Advisory 2021-1369-01
Posted Apr 26, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1369-01 - Red Hat Advanced Cluster Management for Kubernetes 2.1.6 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-0466, CVE-2020-14040, CVE-2020-27152, CVE-2020-28374, CVE-2020-35149, CVE-2021-20218, CVE-2021-20305, CVE-2021-26708, CVE-2021-27363, CVE-2021-27364, CVE-2021-27365, CVE-2021-3121, CVE-2021-3347, CVE-2021-3449, CVE-2021-3450
SHA-256 | 019fe35bad08451966b333b48fcaaaf15597ee545c7cbbff9ea4261482d338df
Red Hat Security Advisory 2021-1338-01
Posted Apr 23, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1338-01 - Red Hat OpenShift Serverless 1.14.0 is a generally available release of the OpenShift Serverless Operator. This version of the OpenShift Serverless Operator is supported on Red Hat OpenShift Container Platform versions 4.6 and 4.7, and includes security and bug fixes and enhancements. For more information, see the documentation listed in the References section. Issues addressed include a code execution vulnerability.

tags | advisory, code execution
systems | linux, redhat
advisories | CVE-2021-20305, CVE-2021-3114, CVE-2021-3115, CVE-2021-3449, CVE-2021-3450
SHA-256 | a30988ff66266b2db5f8acca7f2c0152290e88ca56893b70bb73ae89269755fb
Red Hat Security Advisory 2021-1202-01
Posted Apr 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1202-01 - Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache HTTP Server, the Apache Tomcat Servlet container, Apache Tomcat Connector, JBoss HTTP Connector, Hibernate, and the Tomcat Native library. This release of Red Hat JBoss Web Server 3.1 Service Pack 12 serves as a replacement for Red Hat JBoss Web Server 3.1.11, and includes bug fixes, which are documented in the Release Notes document linked to in the References. Issues addressed include bypass and null pointer vulnerabilities.

tags | advisory, java, web, vulnerability
systems | linux, redhat
advisories | CVE-2021-3449, CVE-2021-3450
SHA-256 | d298b486b2c549a8e088e04b05a72ab4f8bb78532a52abbdf79f9a27372b8ca5
Red Hat Security Advisory 2021-1203-01
Posted Apr 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1203-01 - Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache HTTP Server, the Apache Tomcat Servlet container, Apache Tomcat Connector, JBoss HTTP Connector, Hibernate, and the Tomcat Native library. This release of Red Hat JBoss Web Server 3.1 Service Pack 12 serves as a replacement for Red Hat JBoss Web Server 3.1.11, and includes bug fixes, which are documented in the Release Notes document linked to in the References. Issues addressed include bypass and null pointer vulnerabilities.

tags | advisory, java, web, vulnerability
systems | linux, redhat
advisories | CVE-2021-3449, CVE-2021-3450
SHA-256 | 843c4e4bd39cfea0d38677d1be1f38188426a895786673ecc360bd6def6bd3f1
Red Hat Security Advisory 2021-1200-01
Posted Apr 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1200-01 - Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release adds the new Apache HTTP Server 2.4.37 Service Pack 7 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 6 and includes bug fixes and enhancements. Issues addressed include bypass and null pointer vulnerabilities.

tags | advisory, web, vulnerability
systems | linux, redhat
advisories | CVE-2021-3449, CVE-2021-3450
SHA-256 | 2fbf4efc02ab16310a58ac2156fe73aef5b981f4c04d48622018df68de38a4ee
Red Hat Security Advisory 2021-1199-01
Posted Apr 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1199-01 - This release adds the new Apache HTTP Server 2.4.37 Service Pack 7 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 6 and includes bug fixes and enhancements. Issues addressed include bypass and null pointer vulnerabilities.

tags | advisory, web, vulnerability
systems | linux, redhat
advisories | CVE-2021-3449, CVE-2021-3450
SHA-256 | 0e48ef5d1c90b0c3e3347e7e3394fcbbb4a23a89d852a417dd2fa1fbe1b32b7d
Red Hat Security Advisory 2021-1195-01
Posted Apr 14, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1195-01 - Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector, the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library. Issues addressed include bypass and null pointer vulnerabilities.

tags | advisory, java, web, vulnerability
systems | linux, redhat
advisories | CVE-2021-3449, CVE-2021-3450
SHA-256 | 4f37c599f7e8c48194ac0302bb61b5f6a42cf2d6e305b8bd8ec073fdc4f53478
Red Hat Security Advisory 2021-1196-01
Posted Apr 14, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1196-01 - Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. It is comprised of the Apache Tomcat Servlet container, JBoss HTTP Connector, the PicketLink Vault extension for Apache Tomcat, and the Tomcat Native library. Issues addressed include bypass and null pointer vulnerabilities.

tags | advisory, java, web, vulnerability
systems | linux, redhat
advisories | CVE-2021-3449, CVE-2021-3450
SHA-256 | 805fd116b01cb33b9525ec6a734ac818161e1d4d5b49c50e822a0e34a2e417ad
Red Hat Security Advisory 2021-1189-01
Posted Apr 14, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1189-01 - The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. The ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. Issues addressed include bypass and null pointer vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2021-3449, CVE-2021-3450
SHA-256 | f0ad367a8dacbe7d3f27ab64c77547cac99e0c6d0fd9dfd325275cc2293a40f3
Red Hat Security Advisory 2021-1168-01
Posted Apr 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1168-01 - Red Hat Advanced Cluster Management for Kubernetes 2.2.2 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console-with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which fix several bugs and security issues. Issues addressed include code execution, denial of service, integer overflow, and null pointer vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2020-0466, CVE-2020-14040, CVE-2020-27152, CVE-2020-28374, CVE-2020-28500, CVE-2020-28851, CVE-2020-28852, CVE-2020-29529, CVE-2021-21321, CVE-2021-21322, CVE-2021-23337, CVE-2021-23840, CVE-2021-23841, CVE-2021-26708, CVE-2021-27363, CVE-2021-27364, CVE-2021-27365, CVE-2021-3121, CVE-2021-3347, CVE-2021-3449, CVE-2021-3450
SHA-256 | cfc0ee4720a885efcdbb629dc90451c511ea3b56ea59530b3ab8554fa0475c01
Gentoo Linux Security Advisory 202103-03
Posted Mar 31, 2021
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202103-3 - Multiple vulnerabilities have been found in OpenSSL, the worst of which could allow remote attackers to cause a Denial of Service condition. Versions less than 1.1.1k are affected.

tags | advisory, remote, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2021-23840, CVE-2021-23841, CVE-2021-3449, CVE-2021-3450
SHA-256 | 566847b7af0fcb3a90dc25f29b5036c3ee69853cd7da288df1e5db323975f5ee
Red Hat Security Advisory 2021-1024-01
Posted Mar 30, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1024-01 - OpenSSL is a toolkit that implements the Secure Sockets Layer and Transport Layer Security protocols, as well as a full-strength general-purpose cryptography library. Issues addressed include bypass and null pointer vulnerabilities.

tags | advisory, vulnerability, protocol
systems | linux, redhat
advisories | CVE-2021-3449, CVE-2021-3450
SHA-256 | 11eaa72dbe14fca762a9e8fcf912cb6c453f84d6e535792afb711bcb61362647
OpenSSL Toolkit 1.1.1k
Posted Mar 25, 2021
Site openssl.org

OpenSSL is a robust, fully featured Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols with full-strength cryptography world-wide.

Changes: Fixed a problem with verifying a certificate chain when using the X509_V_FLAG_X509_STRICT flag. Fixed an issue where an OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client.
tags | tool, encryption, protocol
systems | unix
advisories | CVE-2021-3449, CVE-2021-3450
SHA-256 | 892a0875b9872acd04a9fde79b1f943075d5ea162415de3047c327df33fbaee5
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