It was found that the fix for CVE-2014-9750 was incomplete: three issues were found in the value length checks in NTP's ntp_crypto.c, where a packet with particular autokey operations that contained malicious data was not always being completely validated. A remote attacker could use a specially crafted NTP packet to crash ntpd.
Find out more about CVE-2015-7692 from the MITRE CVE dictionary dictionary and NIST NVD.
Base Score | 4 |
---|---|
Base Metrics | AV:N/AC:H/Au:N/C:P/I:N/A:P |
Access Vector | Network |
Access Complexity | High |
Authentication | None |
Confidentiality Impact | Partial |
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-2016:0780 | 2016-05-10 |
Red Hat Enterprise Linux 7 (ntp) | RHSA-2016:2583 | 2016-11-03 |
Platform | Package | State |
---|---|---|
Red Hat Enterprise Linux 5 | ntp | Will not fix |
Disable NTP autokey authentication by removing, or commenting out, all configuration directives beginning with the 'crypto' keyword in your ntp.conf file.