The telnet daemon (telnetd) in MIT krb5 before 1.6.1 allows remote attackers to bypass authentication and gain system access via a username beginning with a '-' character, a similar issue to CVE-2007-0882.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33414
http://www.vupen.com/english/advisories/2007/1249
http://www.vupen.com/english/advisories/2007/1218
http://www.us-cert.gov/cas/techalerts/TA07-093B.html
http://www.ubuntu.com/usn/usn-449-1
http://www.securitytracker.com/id?1017848
http://www.securityfocus.com/bid/23281
http://www.securityfocus.com/archive/1/464814/30/7170/threaded
http://www.securityfocus.com/archive/1/464666/100/0/threaded
http://www.securityfocus.com/archive/1/464590/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2007-0095.html
http://www.mandriva.com/security/advisories?name=MDKSA-2007:077
http://www.kb.cert.org/vuls/id/220816
http://www.debian.org/security/2007/dsa-1276
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2007-001-telnetd.txt
http://security.gentoo.org/glsa/glsa-200704-02.xml
http://secunia.com/advisories/24817
http://secunia.com/advisories/24786
http://secunia.com/advisories/24785
http://secunia.com/advisories/24757
http://secunia.com/advisories/24755
http://secunia.com/advisories/24750
http://secunia.com/advisories/24740
http://secunia.com/advisories/24736