1. Ubuntu Security Notices
  2. USN-705-1

USN-705-1: NTP vulnerability

Publication date

8 January 2009

Overview

NTP vulnerability

Releases

Packages

Details

It was discovered that NTP did not properly perform signature verification.
A remote attacker could exploit this to bypass certificate validation via
a malformed SSL/TLS signature.

It was discovered that NTP did not properly perform signature verification.
A remote attacker could exploit this to bypass certificate validation via
a malformed SSL/TLS signature.

Update instructions

In general, a standard system upgrade is sufficient to effect the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
8.10 intrepid ntp –  1:4.2.4p4+dfsg-6ubuntu2.2
8.04 hardy ntp –  1:4.2.4p4+dfsg-3ubuntu2.1
7.10 gutsy ntp –  1:4.2.4p0+dfsg-1ubuntu2.1
6.06 dapper ntp-simple –  1:4.2.0a+stable-8.1ubuntu6.1
ntp-refclock –  1:4.2.0a+stable-8.1ubuntu6.1

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References

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