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RHSA-2012:0306: krb5 security and bug fix update

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RHSA-2012:0306: krb5 security and bug fix update

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:P/I:P/A:P)
Published
07/11/2011
Created
07/25/2018
Added
02/21/2012
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 ftpd, a Kerberos-aware FTP server, did not properly dropprivileges. On Red Hat Enterprise Linux 5, the ftpd daemon did not checkfor the potential failure of the effective group ID change system call. Ifthe group ID change failed, a remote FTP user could use this flaw to gainunauthorized read or write access to files that are owned by the rootgroup. (CVE-2011-1526)Red Hat would like to thank the MIT Kerberos project for reporting thisissue. Upstream acknowledges Tim Zingelman as the original reporter.This update also fixes the following bugs:All users of krb5 are advised to upgrade to these updated packages, whichresolve these issues.

Solution(s)

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

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