Red Hat Security Advisory: krb5-appl security update
Updated krb5-appl packages that fix one security issue are now available for Red Hat Enterprise Linux 6.0 and 6.1 Extended Update Support. The Red Hat Security Response Team has rated this update as having critical security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2011-4862US | high10.0 | Exploit | ||
Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU… | ||||
references
External citations — patches, advisories, analysis.
remediations (26)
- Fixedkrb5-appl-0:1.0.1-1.el6_0.1.src as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-0:1.0.1-2.el6_1.3.src as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-clients-0:1.0.1-1.el6_0.1.i686 as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-clients-0:1.0.1-1.el6_0.1.ppc64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-clients-0:1.0.1-1.el6_0.1.s390x as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-clients-0:1.0.1-1.el6_0.1.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-clients-0:1.0.1-2.el6_1.3.i686 as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-clients-0:1.0.1-2.el6_1.3.ppc64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-clients-0:1.0.1-2.el6_1.3.s390x as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-clients-0:1.0.1-2.el6_1.3.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-debuginfo-0:1.0.1-1.el6_0.1.i686 as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-debuginfo-0:1.0.1-1.el6_0.1.ppc64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-debuginfo-0:1.0.1-1.el6_0.1.s390x as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-debuginfo-0:1.0.1-1.el6_0.1.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-debuginfo-0:1.0.1-2.el6_1.3.i686 as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-debuginfo-0:1.0.1-2.el6_1.3.ppc64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-debuginfo-0:1.0.1-2.el6_1.3.s390x as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-debuginfo-0:1.0.1-2.el6_1.3.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-servers-0:1.0.1-1.el6_0.1.i686 as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-servers-0:1.0.1-1.el6_0.1.ppc64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-servers-0:1.0.1-1.el6_0.1.s390x as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-servers-0:1.0.1-1.el6_0.1.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.0)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-servers-0:1.0.1-2.el6_1.3.i686 as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-servers-0:1.0.1-2.el6_1.3.ppc64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-servers-0:1.0.1-2.el6_1.3.s390x as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854 - Fixedkrb5-appl-servers-0:1.0.1-2.el6_1.3.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 6.1)
The krb5 telnet daemon is an xinetd service. You can determine if krb5 telnetd is enabled with the commands: /sbin/chkconfig --list krb5-telnet /sbin/chkconfig --list ekrb5-telnet The output of these command will display "on" if krb5 telnet is enabled. krb5 telnet daemon can be immediately disabled with the commands: /sbin/chkconfig krb5-telnet off /sbin/chkconfig ekrb5-telnet off Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:1854
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