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CVE-2015-1799

CVE-2015-1799

This page contains facts from public vulnerability sources. Check the original advisory before updating.

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

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.

EPSS 0.9% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • ntp Debian:11

    Affected ranges
    • ECOSYSTEM: < 1:4.2.6.p5+dfsg-6

    Update to 1:4.2.6.p5+dfsg-6

  • ntp Ubuntu:14.04:LTS

    Versions
    • 1:4.2.6.p5+dfsg-3ubuntu2
    • 1:4.2.6.p5+dfsg-3ubuntu2.14.04.1
    • 1:4.2.6.p5+dfsg-3ubuntu2.14.04.2
    Affected ranges
    • ECOSYSTEM: < 1:4.2.6.p5+dfsg-3ubuntu2.14.04.3

    Update to 1:4.2.6.p5+dfsg-3ubuntu2.14.04.3

Original sources

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