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Red Hat Security Advisory 2024-0252-03
Red Hat Security Advisory 2024-0252-03 - An update for krb5 is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. Issues addressed include bypass and cross site request forgery vulnerabilities.
The following advisory data is extracted from:https://access.redhat.com/security/data/csaf/v2/advisories/2024/rhsa-2024_0252.jsonRed Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.- Packet Storm Staff====================================================================Red Hat Security AdvisorySynopsis: Moderate: krb5 security updateAdvisory ID: RHSA-2024:0252-03Product: Red Hat Enterprise LinuxAdvisory URL: https://access.redhat.com/errata/RHSA-2024:0252Issue date: 2024-01-15Revision: 03CVE Names: CVE-2020-17049====================================================================Summary: An update for krb5 is now available for Red Hat Enterprise Linux 8.6 Extended Update Support.Red Hat Product Security has rated this update as having a security impact of Moderate. 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.Description: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 (KDC).Security Fix(es):* Kerberos: delegation constrain bypass in S4U2Proxy (CVE-2020-17049)* ipa: Invalid CSRF protection (CVE-2023-5455)For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.Solution:https://access.redhat.com/articles/11258CVEs:CVE-2020-17049References:https://access.redhat.com/security/updates/classification/#moderatehttps://bugzilla.redhat.com/show_bug.cgi?id=2025721https://bugzilla.redhat.com/show_bug.cgi?id=2242828https://issues.redhat.com/browse/RHEL-17108Related news
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An update for krb5 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2020-17049: It was found that the Kerberos Key Distribution Center (KDC) delegation feature, Service for User (S4U), did not sufficiently protect the tickets it's providing from tempering. A malicious, authenticated service principal allowed to delegate could use this flaw to impersonate a non-forwardable user.
Hi Folks, We want to continue to highlight changes we’ve made to our Security Update Guide. We have received a lot of feedback, much of which has been very positive. We acknowledge there have been some stability problems and we are actively working through reports of older browsers not being able to run the new application.