CVE-2015-1799

MediumCVSS 4.3/10Last modified Jun 17, 2026

Description

The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer.

Metrics

CVSS 2.0 4.3/10AV:A/AC:M/Au:N/C:N/I:P/A:P

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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