CVE-2015-5146

Publication date 2 July 2015

Last updated 25 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

5.3 · Medium

Score breakdown

Description

ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.

Read the notes from the security team

Status

Package Ubuntu Release Status
ntp 15.10 wily
Fixed 1:4.2.6.p5+dfsg-3ubuntu8.1
15.04 vivid
Fixed 1:4.2.6.p5+dfsg-3ubuntu6.2
14.10 utopic Ignored end of life
14.04 LTS trusty
Fixed 1:4.2.6.p5+dfsg-3ubuntu2.14.04.5
12.04 LTS precise
Fixed 1:4.2.6.p3+dfsg-1ubuntu3.6

Notes

seth-arnold

non-default configuration, requires knowledge of remote authentication password, and ACL-authorized source

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

References

Related Ubuntu Security Notices (USN)

Other references