CVE-2015-1798

LowCVSS 1.8/10Last modified Jun 17, 2026

Description

The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting the MAC.

Metrics

CVSS 2.0 1.8/10AV:A/AC:H/Au:N/C:N/I:P/A:N

Weakness enumeration

CWE-17

Affected software

No affected versions have been published.

Timeline

Published
Apr 8, 2015
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2015-1798: Low severity, CVSS 1.8 | Vulnix