yum-security

"The yum-security package is a new feature of the Red Hat Enterprise Linux 5.1 update. If installed, the yum module provided by this package can be used to limit yum to retrieve only security-related updates. It can also be used to provide information about which Red Hat advisory, bug in Red Hat’s Bugzilla database, or CVE number from MITRE’s Common Vulnerabilities and Exposures directory is addressed by a package update."

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