vulnerability
CentOS Linux: CVE-2020-17049: Moderate: krb5 security, bug fix, and enhancement update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:L/Au:S/C:C/I:C/A:C) | 2020-11-11 | 2023-05-15 | 2024-01-11 |
Severity
9
CVSS
(AV:N/AC:L/Au:S/C:C/I:C/A:C)
Published
2020-11-11
Added
2023-05-15
Modified
2024-01-11
Description
A security feature bypass vulnerability exists in the way Key Distribution Center (KDC) determines if a service ticket can be used for delegation via Kerberos Constrained Delegation (KCD).
To exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service ticket that is not valid for delegation to force the KDC to accept it.
The update addresses this vulnerability by changing how the KDC validates service tickets used with KCD.
Solution(s)
centos-upgrade-bind-dyndb-ldapcentos-upgrade-bind-dyndb-ldap-debuginfocentos-upgrade-bind-dyndb-ldap-debugsourcecentos-upgrade-custodiacentos-upgrade-ipa-clientcentos-upgrade-ipa-client-commoncentos-upgrade-ipa-client-debuginfocentos-upgrade-ipa-client-epncentos-upgrade-ipa-client-sambacentos-upgrade-ipa-commoncentos-upgrade-ipa-debuginfocentos-upgrade-ipa-debugsourcecentos-upgrade-ipa-healthcheckcentos-upgrade-ipa-healthcheck-corecentos-upgrade-ipa-python-compatcentos-upgrade-ipa-selinuxcentos-upgrade-ipa-servercentos-upgrade-ipa-server-commoncentos-upgrade-ipa-server-debuginfocentos-upgrade-ipa-server-dnscentos-upgrade-ipa-server-trust-adcentos-upgrade-ipa-server-trust-ad-debuginfocentos-upgrade-krb5-debuginfocentos-upgrade-krb5-debugsourcecentos-upgrade-krb5-develcentos-upgrade-krb5-libscentos-upgrade-krb5-libs-debuginfocentos-upgrade-krb5-pkinitcentos-upgrade-krb5-pkinit-debuginfocentos-upgrade-krb5-servercentos-upgrade-krb5-server-debuginfocentos-upgrade-krb5-server-ldapcentos-upgrade-krb5-server-ldap-debuginfocentos-upgrade-krb5-workstationcentos-upgrade-krb5-workstation-debuginfocentos-upgrade-libkadm5centos-upgrade-libkadm5-debuginfocentos-upgrade-opendnsseccentos-upgrade-opendnssec-debuginfocentos-upgrade-opendnssec-debugsourcecentos-upgrade-python3-custodiacentos-upgrade-python3-ipaclientcentos-upgrade-python3-ipalibcentos-upgrade-python3-ipaservercentos-upgrade-python3-ipatestscentos-upgrade-python3-jwcryptocentos-upgrade-python3-kdcproxycentos-upgrade-python3-pyusbcentos-upgrade-python3-qrcodecentos-upgrade-python3-qrcode-corecentos-upgrade-python3-yubicocentos-upgrade-slapi-niscentos-upgrade-slapi-nis-debuginfocentos-upgrade-slapi-nis-debugsourcecentos-upgrade-softhsmcentos-upgrade-softhsm-debuginfocentos-upgrade-softhsm-debugsourcecentos-upgrade-softhsm-devel
References
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