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CentOS Linux: CVE-2021-36222: Moderate: krb5 security update (CESA-2021:3576)

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CentOS Linux: CVE-2021-36222: Moderate: krb5 security update (CESA-2021:3576)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
07/22/2021
Created
09/23/2021
Added
09/22/2021
Modified
05/25/2023

Description

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.

Solution(s)

  • centos-upgrade-krb5-debuginfo
  • centos-upgrade-krb5-debugsource
  • centos-upgrade-krb5-devel
  • centos-upgrade-krb5-devel-debuginfo
  • centos-upgrade-krb5-libs
  • centos-upgrade-krb5-libs-debuginfo
  • centos-upgrade-krb5-pkinit
  • centos-upgrade-krb5-pkinit-debuginfo
  • centos-upgrade-krb5-server
  • centos-upgrade-krb5-server-debuginfo
  • centos-upgrade-krb5-server-ldap
  • centos-upgrade-krb5-server-ldap-debuginfo
  • centos-upgrade-krb5-workstation
  • centos-upgrade-krb5-workstation-debuginfo
  • centos-upgrade-libkadm5
  • centos-upgrade-libkadm5-debuginfo

References

  • DSA-4944
  • CVE-2021-36222

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