Off-by-one error in the krb5_encode_krbsecretkey function in plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in the LDAP KDB module in kadmind in MIT Kerberos 5 (aka krb5) 1.6.x through 1.11.x before 1.11.6 and 1.12.x before 1.12.2 allows remote authenticated users to cause a denial of service (buffer overflow) or possibly execute arbitrary code via a series of "cpw -keepold" commands.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-4345
• krb5/krb5#181
• krb5/krb5@dc7ed55
• https://blogs.oracle.com/sunsecurity/entry/cve_2014_4345_numeric_errors
• https://bugzilla.redhat.com/show_bug.cgi?id=1128157
• https://exchange.xforce.ibmcloud.com/vulnerabilities/95212
• http://advisories.mageia.org/MGASA-2014-0345.html
• http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
• http://krbdev.mit.edu/rt/Ticket/Display.html?id=7980
• http://linux.oracle.com/errata/ELSA-2014-1255.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136640.html
• http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137056.html
• http://lists.opensuse.org/opensuse-security-announce/2014-08/msg00009.html
• http://lists.opensuse.org/opensuse-updates/2014-08/msg00030.html
• http://rhn.redhat.com/errata/RHSA-2014-1255.html
• http://rhn.redhat.com/errata/RHSA-2015-0439.html
• http://secunia.com/advisories/59102
• http://secunia.com/advisories/59415
• http://secunia.com/advisories/59993
• http://secunia.com/advisories/60535
• http://secunia.com/advisories/60776
• http://secunia.com/advisories/61314
• http://secunia.com/advisories/61353
• http://security.gentoo.org/glsa/glsa-201412-53.xml
• http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2014-001.txt
• http://www.debian.org/security/2014/dsa-3000
• http://www.mandriva.com/security/advisories?name=MDVSA-2014:165
• http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
• http://www.osvdb.org/109908
• http://www.securityfocus.com/bid/69168
• http://www.securitytracker.com/id/1030705