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CVE-2021-36222

Status Candidate

Overview

ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.

Related Files

Gentoo Linux Security Advisory 202405-11
Posted May 6, 2024
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202405-11 - Multiple vulnerabilities have been discovered in MIT krb5, the worst of which could lead to remote code execution. Versions greater than or equal to 1.21.2 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2021-36222, CVE-2021-37750, CVE-2022-42898, CVE-2023-36054, CVE-2023-39975
SHA-256 | cbd15bb1c6724a8aa28d838d94be9630722c0b6b8d1f63302b99478ca27bf2e0
Ubuntu Security Notice USN-5959-1
Posted Mar 17, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5959-1 - It was discovered that Kerberos incorrectly handled memory when processing KDC data, which could lead to a NULL pointer dereference. An attacker could possibly use this issue to cause a denial of service or have other unspecified impacts.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2021-36222
SHA-256 | d9f3d92945cbc3be219bd04ebd7aac3aa31d1cac83d0d62d9ee82f4e45c4d1b0
Red Hat Security Advisory 2021-4725-03
Posted Nov 18, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4725-03 - OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform. This advisory contains OpenShift Virtualization 2.6.8 images.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-25648, CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-29923, CVE-2021-34558, CVE-2021-36222, CVE-2021-3653, CVE-2021-3733, CVE-2021-37750
SHA-256 | 00aec26b5e44879b921222ad5caa4a2a5bb4ed97adfe718c6cc6619b1e9c65c6
Red Hat Security Advisory 2021-4618-01
Posted Nov 12, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4618-01 - Red Hat Advanced Cluster Management for Kubernetes 2.4.0 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 buffer overflow, denial of service, information leakage, integer overflow, out of bounds read, and path sanitization vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2020-36385, CVE-2021-0512, CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-22946, CVE-2021-22947, CVE-2021-23017, CVE-2021-32626, CVE-2021-32627, CVE-2021-32628, CVE-2021-32672, CVE-2021-32675, CVE-2021-32687, CVE-2021-32690, CVE-2021-32803, CVE-2021-32804, CVE-2021-33623, CVE-2021-33928, CVE-2021-33929, CVE-2021-33930, CVE-2021-33938, CVE-2021-36222, CVE-2021-3656, CVE-2021-3711, CVE-2021-3712, CVE-2021-3733
SHA-256 | 14809d9261f291a519a153713fcca44c926124a2a48c8d989887911783dba47f
Red Hat Security Advisory 2021-4104-01
Posted Nov 3, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4104-01 - OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-25648, CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-3121, CVE-2021-31525, CVE-2021-33195, CVE-2021-33197, CVE-2021-33198, CVE-2021-34558, CVE-2021-36222, CVE-2021-3653, CVE-2021-37750
SHA-256 | a0f4016bf01db767d10a8aa69fb754c9e874b8c8f685fdd273d310c8660ce13c
Red Hat Security Advisory 2021-3949-01
Posted Oct 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3949-01 - Red Hat Advanced Cluster Management for Kubernetes 2.1.12 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 updates to one or more container images for Red Hat Advanced Cluster Management for Kubernetes. Issues addressed include denial of service, integer overflow, and out of bounds read vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2016-4658, CVE-2021-22543, CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-23840, CVE-2021-23841, CVE-2021-32626, CVE-2021-32627, CVE-2021-32628, CVE-2021-32672, CVE-2021-32675, CVE-2021-32687, CVE-2021-36222, CVE-2021-3653, CVE-2021-3656, CVE-2021-37576, CVE-2021-37750, CVE-2021-41099
SHA-256 | da3bb0a2f0aedf1b55d5f8cbbece5dc6749623ae797a40f9e1cf9bf6796ee1a4
Red Hat Security Advisory 2021-3925-01
Posted Oct 20, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3925-01 - Red Hat Advanced Cluster Management for Kubernetes 2.3.3 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 provide security updates. Issues addressed include denial of service, information leakage, integer overflow, and out of bounds read vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2016-4658, CVE-2020-25648, CVE-2021-21670, CVE-2021-21671, CVE-2021-22543, CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-23017, CVE-2021-23840, CVE-2021-23841, CVE-2021-25741, CVE-2021-32626, CVE-2021-32627, CVE-2021-32628, CVE-2021-32672, CVE-2021-32675, CVE-2021-32687, CVE-2021-32690, CVE-2021-36222, CVE-2021-3653, CVE-2021-3656, CVE-2021-37576, CVE-2021-37750, CVE-2021-41099
SHA-256 | fd1035fefbb8b3d06fa3e4a659771a25d330eb9fd90f1ff55f4f16a1d0ab3d2c
Red Hat Security Advisory 2021-3873-01
Posted Oct 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3873-01 - Red Hat Advanced Cluster Management for Kubernetes 2.2.9 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 provide bug fixes and security fixes. Issues addressed include bypass, denial of service, integer overflow, and out of bounds read vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-23017, CVE-2021-23434, CVE-2021-32626, CVE-2021-32627, CVE-2021-32628, CVE-2021-32672, CVE-2021-32675, CVE-2021-32687, CVE-2021-36222, CVE-2021-3653, CVE-2021-37750, CVE-2021-41099
SHA-256 | b4c1512c3c02a0773b56b0befe34c43efa0dbab79ff54109600f1815b01d985e
Red Hat Security Advisory 2021-3851-01
Posted Oct 14, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3851-01 - Red Hat 3scale API Management delivers centralized API management features through a distributed, cloud-hosted layer. It includes built-in features to help in building a more successful API program, including access control, rate limits, payment gateway integration, and developer experience tools. This advisory is intended to use with Container Images, for Red Hat 3scale API Management 2.11.0. Issues addressed include a cross site scripting vulnerability.

tags | advisory, xss
systems | linux, redhat
advisories | CVE-2020-8911, CVE-2020-8912, CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-27218, CVE-2021-3442, CVE-2021-36222, CVE-2021-3653, CVE-2021-3715, CVE-2021-37750
SHA-256 | e4888f040246d49c7a7c2e4f31bece8b08efa09009b3ee41382c5876a9bfdbbc
Red Hat Security Advisory 2021-3694-01
Posted Sep 30, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3694-01 - 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 denial of service vulnerability.

tags | advisory, web, denial of service
systems | linux, redhat
advisories | CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-36222, CVE-2021-3749, CVE-2021-37576, CVE-2021-37750, CVE-2021-38201
SHA-256 | b1ce9e701282280a5c2dbdfafd7782a607b33f330152c096fdc1e2b3c2debde0
Red Hat Security Advisory 2021-3653-01
Posted Sep 24, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3653-01 - Red Hat Advanced Cluster Management 2.1.11 security fix and container updates are available.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-27777, CVE-2021-22555, CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-23017, CVE-2021-29154, CVE-2021-29650, CVE-2021-31535, CVE-2021-32399, CVE-2021-36222, CVE-2021-3653, CVE-2021-37750
SHA-256 | 15f863255ce01b9af4125b6f699165597020889114335a232c7f75076dc7e35c
Red Hat Security Advisory 2021-3576-01
Posted Sep 21, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3576-01 - Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center. Issues addressed include denial of service and null pointer vulnerabilities.

tags | advisory, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2021-36222, CVE-2021-37750
SHA-256 | 176c8112dae74b55a1e68ef3a5a8e1e49f5632f19539fe74885cf7d4afcad4af
Debian Security Advisory 4944-1
Posted Jul 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4944-1 - It was discovered that the Key Distribution Center (KDC) in krb5, the MIT implementation of Kerberos, is prone to a NULL pointer dereference flaw. An unauthenticated attacker can take advantage of this flaw to cause a denial of service (KDC crash) by sending a request containing a PA-ENCRYPTED-CHALLENGE padata element without using FAST.

tags | advisory, denial of service
systems | linux, debian
advisories | CVE-2021-36222
SHA-256 | 42036edebb28009c78bc3526ed1cd53c67ee4d42a4bd26657d2433b71b487a10
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