Out-of-Bounds Affecting ntp package, versions <1:4.2.8p7+dfsg-1


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.24% (65th percentile)

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  • Snyk ID SNYK-DEBIAN11-NTP-524489
  • published 30 Jan 2017
  • disclosed 30 Jan 2017

How to fix?

Upgrade Debian:11 ntp to version 1:4.2.8p7+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 nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an attacker to cause a denial of service (application crash).

CVSS Scores

version 3.1
Expand this section

Red Hat

3.7 low
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low