|Category:||Red Hat Local Security Checks|
|Title:||RedHat Update for krb5 RHSA-2011:1790-01|
|Summary:||The remote host is missing an update for the 'krb5'; package(s) announced via the referenced advisory.|
The remote host is missing an update for the 'krb5'
package(s) announced via the referenced advisory.
Kerberos is a network authentication system which allows clients and
servers to authenticate to each other using symmetric encryption and a
trusted third-party, the Key Distribution Center (KDC).
A NULL pointer dereference flaw was found in the way the MIT Kerberos KDC
processed certain TGS (Ticket-granting Server) requests. A remote,
authenticated attacker could use this flaw to crash the KDC via a
specially-crafted TGS request. (CVE-2011-1530)
Red Hat would like to thank the MIT Kerberos project for reporting this
All krb5 users should upgrade to these updated packages, which contain a
backported patch to correct this issue. After installing the updated
packages, the krb5kdc daemon will be restarted automatically.
krb5 on Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Workstation (v. 6)
Please Install the Updated Packages.
Common Vulnerability Exposure (CVE) ID: CVE-2011-1530|
BugTraq ID: 50929
Bugtraq: 20111206 MITKRB5-SA-2011-007 KDC null pointer dereference in TGS handling [CVE-2011-1530] (Google Search)
XForce ISS Database: kerberos-processtgsreq-dos(71655)
|Copyright||Copyright (c) 2012 Greenbone Networks GmbH|
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