The reply function in ftpd.c in the gssftp ftpd in MIT Kerberos 5 (krb5) does not initialize the length variable when auth_type has a certain value, which has unknown impact and remote authenticated attack vectors. NOTE: the original disclosure misidentifies the conditions under which the uninitialized variable is used. NOTE: the vendor disputes this issue, stating The length variable is only uninitialized if auth_type is neither the KERBEROS_V4 nor GSSAPI; this condition cannot occur in the unmodified source code.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Kerberos_5 | Mit | - (including) | - (including) |
| Krb5 | Ubuntu | dapper | * |
| Krb5 | Ubuntu | edgy | * |
| Krb5 | Ubuntu | feisty | * |
| Krb5 | Ubuntu | gutsy | * |
| Krb5 | Ubuntu | hardy | * |
| Krb5 | Ubuntu | upstream | * |
References
- http://bugs.gentoo.org/show_bug.cgi?id=199205
- http://osvdb.org/44333
- http://seclists.org/fulldisclosure/2007/Dec/0176.html
- http://seclists.org/fulldisclosure/2007/Dec/0321.html
- http://secunia.com/advisories/28636
- http://secunia.com/advisories/29457
- http://wiki.rpath.com/Advisories:rPSA-2008-0112
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0112
- http://www.novell.com/linux/security/advisories/suse_security_summary_report.html
- http://www.securityfocus.com/archive/1/489883/100/0/threaded
- http://www.securityfocus.com/bid/26750
- https://issues.rpath.com/browse/RPL-2012
- http://bugs.gentoo.org/show_bug.cgi?id=199205
- http://osvdb.org/44333
- http://seclists.org/fulldisclosure/2007/Dec/0176.html
- http://seclists.org/fulldisclosure/2007/Dec/0321.html
- http://secunia.com/advisories/28636
- http://secunia.com/advisories/29457
- http://wiki.rpath.com/Advisories:rPSA-2008-0112
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0112
- http://www.novell.com/linux/security/advisories/suse_security_summary_report.html
- http://www.securityfocus.com/archive/1/489883/100/0/threaded
- http://www.securityfocus.com/bid/26750
- https://issues.rpath.com/browse/RPL-2012