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USN-4229-1: NTP vulnerability

9 January 2020

A security issue was fixed in ntpq and ntpdc.

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Releases

Packages

  • 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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04
Ubuntu 14.04
  • ntp - 1:4.2.6.p5+dfsg-3ubuntu2.14.04.13+esm1
    Available with Ubuntu Pro
Ubuntu 12.04

In general, a standard system update will make all the necessary changes.

References

Related notices

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Further reading