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CVE-2016-1550

CVE-2016-1550

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.

An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.

CVSS 5.3 · Medium · EPSS 3.6% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • ntp

    Versions
    • 4.2.8p3: Affected
    • 4.2.8p4: Affected

    No fix published

  • ntpsec

    Versions
    • a5fb34b9cc89b92a8fef2f459004865c93bb7f92: Affected

    No fix published

  • ntp Debian:11

    Affected ranges
    • ECOSYSTEM: < 1:4.2.8p7+dfsg-1

    Update to 1:4.2.8p7+dfsg-1

  • 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
    • 1:4.2.6.p5+dfsg-3ubuntu2.14.04.3
    • 1:4.2.6.p5+dfsg-3ubuntu2.14.04.5
    • 1:4.2.6.p5+dfsg-3ubuntu2.14.04.6
    • 1:4.2.6.p5+dfsg-3ubuntu2.14.04.7
    • 1:4.2.6.p5+dfsg-3ubuntu2.14.04.8
    Affected ranges
    • ECOSYSTEM: < 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10

    Update to 1:4.2.6.p5+dfsg-3ubuntu2.14.04.10

  • ntp Ubuntu:16.04:LTS

    Versions
    • 1:4.2.6.p5+dfsg-3ubuntu8
    • 1:4.2.6.p5+dfsg-3ubuntu8.1
    • 1:4.2.6.p5+dfsg-3ubuntu9
    • 1:4.2.8p4+dfsg-3ubuntu1
    • 1:4.2.8p4+dfsg-3ubuntu2
    • 1:4.2.8p4+dfsg-3ubuntu3
    • 1:4.2.8p4+dfsg-3ubuntu4
    • 1:4.2.8p4+dfsg-3ubuntu5
    • 1:4.2.8p4+dfsg-3ubuntu5.1
    • 1:4.2.8p4+dfsg-3ubuntu5.2
    Affected ranges
    • ECOSYSTEM: < 1:4.2.8p4+dfsg-3ubuntu5.3

    Update to 1:4.2.8p4+dfsg-3ubuntu5.3

Original sources

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