Improper Input Validation Affecting ntp package, versions <1:4.2.8p3+dfsg-1


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    96.43% (100th percentile)

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  • Snyk ID SNYK-DEBIAN11-NTP-520607
  • published 2 Jan 2014
  • disclosed 2 Jan 2014

How to fix?

Upgrade Debian:11 ntp to version 1:4.2.8p3+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ntp package and not the ntp package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

The monlist feature in ntp_request.c in ntpd in NTP before 4.2.7p26 allows remote attackers to cause a denial of service (traffic amplification) via forged (1) REQ_MON_GETLIST or (2) REQ_MON_GETLIST_1 requests, as exploited in the wild in December 2013.

CVSS Scores

version 3.1
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NVD

5.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low
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Red Hat

4.3 medium