Two vulnerabilities have been discovered in APT, the well-known dpkg frontend. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2009-1300 In time zones where daylight savings time occurs at midnight, the apt cron.daily script fails, stopping new security updates from being applied automatically. CVE-2009-1358 A repository that has been signed with an expired or revoked OpenPGP key would still be considered valid by APT. For the old stable distribution , these problems have been fixed in version 0.6.46.4-0.1+etch1. For the stable distribution , these problems have been fixed in version 0.7.20.2+lenny1. For the unstable distribution , these problems have been fixed in version 0.7.21. We recommend that you upgrade your apt package.