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USN-762-1: APT vulnerabilities

20 April 2009

APT vulnerabilities

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Releases

Packages

Details

Alexandre Martani discovered that the APT daily cron script did not check
the return code of the date command. If a machine is configured for
automatic updates and is in a time zone where DST occurs at midnight, under
certain circumstances automatic updates might not be applied and could
become permanently disabled. (CVE-2009-1300)

Michael Casadevall discovered that APT did not properly verify repositories
signed with a revoked or expired key. If a repository were signed with only
an expired or revoked key and the signature was otherwise valid, APT would
consider the repository valid. (https://launchpad.net/bugs/356012)

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 8.10
Ubuntu 8.04
Ubuntu 6.06

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