| Package | Affected versions | Patched versions |
|---|---|---|
| hpux-ntp | < c.4.2.8.4.0 | c.4.2.8.4.0 |
| ntp | = 4.2.8≥ 4.2.6, < 4.2.8 | 4.2.8 |
| router manager | ≥ 1.1, < 1.1.6-6931-3 | 1.1.6-6931-3 |
| skynas | < 6.1.5-15254 | 6.1.5-15254 |
| virtual diskstation manager | < 6.1.6-15266 | 6.1.6-15266 |
The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association.
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