ID de Prueba:	1.3.6.1.4.1.25623.1.0.71879
Categoría:	Red Hat Local Security Checks
Título:	RedHat Security Advisory RHSA-2011:1853
Resumen:	NOSUMMARY
Descripción:	Description: The remote host is missing updates announced in advisory RHSA-2011:1853. 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 buffer overflow flaw was found in the MIT krb5 telnet daemon (telnetd). A remote attacker who can access the telnet port of a target machine could use this flaw to execute arbitrary code as root. (CVE-2011-4862) Note that the krb5 telnet daemon is not enabled by default in any version of Red Hat Enterprise Linux. In addition, the default firewall rules block remote access to the telnet port. This flaw does not affect the telnet daemon distributed in the telnet-server package. For users who have installed the krb5-workstation package, have enabled the telnet daemon, and have it accessible remotely, this update should be applied immediately. All krb5-workstation users should upgrade to these updated packages, which contain a backported patch to correct this issue. 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-2011-1853.html http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-008.txt Risk factor : High
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2011-4862 Bugtraq: 20111226 MITKRB5-SA-2011-008 buffer overflow in telnetd [CVE-2011-4862] (Google Search) http://archives.neohapsis.com/archives/bugtraq/2011-12/0172.html Debian Security Information: DSA-2372 (Google Search) http://www.debian.org/security/2011/dsa-2372 Debian Security Information: DSA-2373 (Google Search) http://www.debian.org/security/2011/dsa-2373 Debian Security Information: DSA-2375 (Google Search) http://www.debian.org/security/2011/dsa-2375 http://www.exploit-db.com/exploits/18280/ http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071627.html http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071640.html FreeBSD Security Advisory: FreeBSD-SA-11:08 http://security.freebsd.org/advisories/FreeBSD-SA-11:08.telnetd.asc http://www.mandriva.com/security/advisories?name=MDVSA-2011:195 http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006117.html http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006118.html http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006119.html http://lists.freebsd.org/pipermail/freebsd-security/2011-December/006120.html http://osvdb.org/78020 http://www.redhat.com/support/errata/RHSA-2011-1851.html http://www.redhat.com/support/errata/RHSA-2011-1852.html http://www.redhat.com/support/errata/RHSA-2011-1853.html http://www.redhat.com/support/errata/RHSA-2011-1854.html http://www.securitytracker.com/id?1026460 http://www.securitytracker.com/id?1026463 http://secunia.com/advisories/46239 http://secunia.com/advisories/47341 http://secunia.com/advisories/47348 http://secunia.com/advisories/47357 http://secunia.com/advisories/47359 http://secunia.com/advisories/47373 http://secunia.com/advisories/47374 http://secunia.com/advisories/47397 http://secunia.com/advisories/47399 http://secunia.com/advisories/47441 SuSE Security Announcement: SUSE-SU-2012:0010 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00002.html SuSE Security Announcement: SUSE-SU-2012:0018 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00004.html SuSE Security Announcement: SUSE-SU-2012:0024 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00007.html SuSE Security Announcement: SUSE-SU-2012:0042 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.html SuSE Security Announcement: SUSE-SU-2012:0050 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00011.html SuSE Security Announcement: SUSE-SU-2012:0056 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00015.html SuSE Security Announcement: openSUSE-SU-2012:0019 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00005.html SuSE Security Announcement: openSUSE-SU-2012:0051 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00014.html XForce ISS Database: multiple-telnetd-bo(71970) https://exchange.xforce.ibmcloud.com/vulnerabilities/71970
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