Improper Input Validation Affecting ntp package, versions <1:4.2.8p9+dfsg-1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    96.46% (100th percentile)

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  • Snyk ID SNYK-DEBIAN11-NTP-524505
  • published 13 Jan 2017
  • disclosed 13 Jan 2017

How to fix?

Upgrade Debian:11 ntp to version 1:4.2.8p9+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 read_mru_list function in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (crash) via a crafted mrulist query.

CVSS Scores

version 3.1
Expand this section

NVD

7.5 high
  • 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)
    High