ID de Prueba:	1.3.6.1.4.1.25623.1.0.69224
Categoría:	Red Hat Local Security Checks
Título:	RedHat Security Advisory RHSA-2011:0356
Resumen:	NOSUMMARY
Descripción:	Description: The remote host is missing updates announced in advisory RHSA-2011:0356. 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). The Public Key Cryptography for Initial Authentication in Kerberos (PKINIT) capability provides support for using public-key authentication with Kerberos. A double-free flaw was found in the way the MIT Kerberos KDC handled initial authentication requests (AS-REQ), when the KDC was configured to provide the PKINIT capability. A remote attacker could use this flaw to cause the KDC daemon to abort by using a specially-crafted AS-REQ request. (CVE-2011-0284) 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. Solution: Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date http://rhn.redhat.com/errata/RHSA-2011-0356.html http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-003.txt Risk factor : High CVSS Score: 7.6
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2011-0284 BugTraq ID: 46881 http://www.securityfocus.com/bid/46881 Bugtraq: 20110315 MITKRB5-SA-2011-003 [CVE-2011-0284] KDC double-free when PKINIT enabled (Google Search) http://www.securityfocus.com/archive/1/517029/100/0/threaded CERT/CC vulnerability note: VU#943220 http://www.kb.cert.org/vuls/id/943220 http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056579.html http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056573.html http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056413.html http://www.mandriva.com/security/advisories?name=MDVSA-2011:048 http://osvdb.org/71183 http://www.redhat.com/support/errata/RHSA-2011-0356.html http://securitytracker.com/id?1025216 http://secunia.com/advisories/43700 http://secunia.com/advisories/43760 http://secunia.com/advisories/43783 http://secunia.com/advisories/43881 SuSE Security Announcement: SUSE-SR:2011:005 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html http://www.ubuntu.com/usn/USN-1088-1 http://www.vupen.com/english/advisories/2011/0672 http://www.vupen.com/english/advisories/2011/0673 http://www.vupen.com/english/advisories/2011/0680 http://www.vupen.com/english/advisories/2011/0722 http://www.vupen.com/english/advisories/2011/0763 XForce ISS Database: kerberos-perpareerroras-code-execution(66101) https://exchange.xforce.ibmcloud.com/vulnerabilities/66101
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