A double-free flaw was found in the way MIT Kerberos handled invalid External Data Representation (XDR) data. An authenticated user could use this flaw to crash the MIT Kerberos administration server (kadmind), or other applications using Kerberos libraries, using specially crafted XDR packets.
Find out more about CVE-2014-9421 from the MITRE CVE dictionary dictionary and NIST NVD.
Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
| Base Score | 6.5 |
|---|---|
| Base Metrics | AV:N/AC:L/Au:S/C:P/I:P/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | Single |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux 7 (krb5) | RHSA-2015:0439 | 2015-03-05 |
| Red Hat Enterprise Linux 6 (krb5) | RHSA-2015:0794 | 2015-04-09 |
| Platform | Package | State |
|---|---|---|
| Red Hat JBoss EWS 2 | krb5 | Not affected |
| Red Hat JBoss EAP 6 | krb5 | Not affected |
| Red Hat Enterprise Linux 5 | krb5 | Will not fix |
Vulmon