A missing return statement in the receive() function could potentially allow a remote attacker to bypass NTP's authentication mechanism.
Find out more about CVE-2014-9296 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue did not affect the versions of ntpd as shipped with Red Hat Enterprise Linux 4 and 5. It has been addressed in Red Hat Enterprise Linux 6 and 7 via RHSA-2014:2024.
| Base Score | 5 |
|---|---|
| Base Metrics | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| 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 6 (ntp) | RHSA-2014:2024 | 2014-12-20 |
| Red Hat Enterprise Linux 7 (ntp) | RHSA-2014:2024 | 2014-12-20 |
| Red Hat Enterprise Linux Extended Update Support 6.5 (ntp) | RHSA-2015:0104 | 2015-01-28 |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 5 | ntp | Not affected |
Remove or comment out all configuration directives beginning with the crypto keyword in your ntp.conf file.
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