Overview
Unauthenticated attacker can cause MIT krb5 Key Distribution Center (KDC) to overflow a heap buffer by one byte, possibly leading to arbitrary code execution.
Description
Kerberos is a network authentication system which uses a trusted third party (a KDC) to authenticate clients and servers to each other. It is designed to provide strong authentication for client/server applications by using secret-key cryptography. MIT Kerberos code is used in network applications from a variety of different vendors and is included in many UNIX and Linux distributions. The MIT krb5 Security Advisory 2005-002 issued 2005 July 12, available from |
Impact
An unauthenticated attacker may be able to use this vulnerability to execute arbitrary code on the KDC host, potentially compromising an entire Kerberos realm. No exploit code is known to exist at this time. According to the MIT krb5 Security Advisory 2005-002 this vulnerability affects KDC implementations and application servers in all MIT krb5 releases, up to and including krb5-1.4.1. Third-party application servers which use MIT krb5 are also affected. |
Solution
Apply patches available from your vendor. Details of the patch are also available from
|
Vendor Information
Red Hat Inc. Affected
Notified: May 10, 2005 Updated: July 11, 2005
Status
Affected
Vendor Statement
Red Hat, Inc
This issue affects the Kerberos packages shipped with Red Hat Enterprise
Linux. For Red Hat Enterprise Linux 2.1 and Red Hat Enterprise Linux 3
this issue is critical severity. Please see our advisory for more
information:
https://rhn.redhat.com/errata/RHSA-2005-562.html
Red Hat Enterprise Linux 4 contains checks within glibc that detect
double-free flaws. Therefore on Red Hat Enterprise Linux 4 successful
exploitation of this issue can only lead to a denial of service (KDC
crash) which is important severity. Please see our advisory for more
information:
https://rhn.redhat.com/errata/RHSA-2005-567.html
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
We have no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Sun Microsystems Inc. Affected
Notified: May 10, 2005 Updated: July 13, 2005
Status
Affected
Vendor Statement
Sun is affected by the two Kerberos vulnerabilities described in MIT Advisory MITKRB5-SA-2005-002 and CERT VU#259798 and VU#885830. Sun has published Sun Alert 101809 which is available here:
for these issues.
The Sun Alert is currently unresolved but will be updated once either IDRs or T-patches are available on SunSolve. The Sun Alert will ultimately be updated with the released patch information for the final resolution.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
F5 Networks Not Affected
Notified: May 12, 2005 Updated: May 27, 2005
Status
Not Affected
Vendor Statement
F5 products do not include a KDC. No F5 products are vulnerable.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Juniper Networks Not Affected
Notified: May 10, 2005 Updated: June 21, 2005
Status
Not Affected
Vendor Statement
Juniper Networks' products do not employ Kerberos in any configuration. Juniper's products are not subject to exploitation via the vulnerability in the MIT krb5.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Microsoft Corporation Not Affected
Notified: May 10, 2005 Updated: May 19, 2005
Status
Not Affected
Vendor Statement
At this point, we have determined that there are no Microsoft products affected by this vulnerability.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
Microsoft made the above statement on May 15, 2005.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Apple Computer Inc. Unknown
Notified: May 10, 2005 Updated: May 10, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Conectiva Unknown
Notified: May 10, 2005 Updated: May 10, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Cray Inc. Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Debian Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
EMC Corporation Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Engarde Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
FreeBSD Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Fujitsu Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
HP Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Hitachi Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
IBM Unknown
Notified: May 10, 2005 Updated: May 10, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Immunix Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Ingrian Networks Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
KTH Kerberos Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
MandrakeSoft Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
MontaVista Software Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
NEC Corporation Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
NetBSD Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Nokia Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Novell Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Openwall GNU/*/Linux Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
QNX Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
SCO Unknown
Notified: May 10, 2005 Updated: May 10, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
SGI Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Sony Corporation Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
SuSE Inc. Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
TurboLinux Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Unisys Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
WRQ Unknown
Notified: May 10, 2005 Updated: May 17, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
Wind River Systems Inc. Unknown
Notified: May 10, 2005 Updated: May 10, 2005
Status
Unknown
Vendor Statement
We have not received a statement from the vendor.
Vendor Information
The vendor has not provided us with any further information regarding this vulnerability.
Addendum
US-CERT has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us email.
CVSS Metrics
| Group | Score | Vector |
|---|---|---|
| Base | ||
| Temporal | ||
| Environmental |
References
Acknowledgements
This vulnerability was reported by the MIT Kerberos Development Team. The MIT Kerberos Development Team thank Daniel Wachdorf for reporting this vulnerability.
This document was written by Robert Mead based on information in the MIT krb5 Security Advisory 2005-002.
Other Information
| CVE IDs: | CVE-2005-1175 |
| Severity Metric: | 4.63 |
| Date Public: | 2005-07-12 |
| Date First Published: | 2005-07-13 |
| Date Last Updated: | 2005-07-13 15:15 UTC |
| Document Revision: | 26 |