ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet containing an extension field with an invalid value for the length of its value field.
| Software | From | Fixed in |
|---|---|---|
| ntp / ntp | 4.2.8 | 4.2.8.x |
| ntp / ntp | 4.2.0 | 4.2.8 |
| redhat / enterprise_linux_desktop | 6.0 | 6.0.x |
| redhat / enterprise_linux_server | 6.0 | 6.0.x |
| redhat / enterprise_linux_workstation | 6.0 | 6.0.x |
| debian / debian_linux | 8.0 | 8.0.x |
| debian / debian_linux | 7.0 | 7.0.x |
| debian / debian_linux | 9.0 | 9.0.x |
| oracle / linux | 7 | 7.x |