USN-4229-1: NTP vulnerability
ntp vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM
Summary
A security issue was fixed in ntpq and ntpdc.
Software Description
- ntp – Network Time Protocol daemon and utility programs
Details
It was discovered that ntpq and ntpdc incorrectly handled some arguments.
An attacker could possibly use this issue to cause ntpq or ntpdc to crash,
execute arbitrary code, or escalate to higher privileges.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 16.04 LTS
- ntp – 1:4.2.8p4+dfsg-3ubuntu5.10
- Ubuntu 14.04 ESM
- ntp – 1:4.2.6.p5+dfsg-3ubuntu2.14.04.13+esm1
- Ubuntu 12.04 ESM
- ntp – 1:4.2.6.p3+dfsg-1ubuntu3.13
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
References
Source: USN-4229-1: NTP vulnerability
