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RHSA-2013:0942: krb5 security update

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RHSA-2013:0942: krb5 security update

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
05/29/2013
Created
07/25/2018
Added
06/19/2013
Modified
07/04/2017

Description

Kerberos is a network authentication system which allows clients andservers to authenticate to each other using symmetric encryption and atrusted third-party, the Key Distribution Center (KDC).It was found that kadmind's kpasswd service did not perform any validationon incoming network packets, causing it to reply to all requests. A remoteattacker could use this flaw to send spoofed packets to a kpasswdservice that appear to come from kadmind on a different server, causing theservices to keep replying packets to each other, consuming networkbandwidth and CPU. (CVE-2002-2443)All krb5 users should upgrade to these updated packages, which contain abackported patch to correct this issue. After installing the updatedpackages, the krb5kdc and kadmind daemons will be restarted automatically.

Solution(s)

  • redhat-upgrade-krb5-debuginfo
  • redhat-upgrade-krb5-devel
  • redhat-upgrade-krb5-libs
  • redhat-upgrade-krb5-pkinit-openssl
  • redhat-upgrade-krb5-server
  • redhat-upgrade-krb5-server-ldap
  • redhat-upgrade-krb5-workstation

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