CVE-2018-7183

Publication date 8 March 2018

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.

Status

Package Ubuntu Release Status
ntp 18.10 cosmic
Fixed 1:4.2.8p11+dfsg-1ubuntu1
18.04 LTS bionic
Fixed 1:4.2.8p10+dfsg-5ubuntu7.1
17.10 artful
Fixed 1:4.2.8p10+dfsg-5ubuntu3.3
16.04 LTS xenial
Fixed 1:4.2.8p4+dfsg-3ubuntu5.9
14.04 LTS trusty
Fixed 1:4.2.6.p5+dfsg-3ubuntu2.14.04.13

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
ntp

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references