Updated imap packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1. This update has been rated as having low security impact by the Red Hat Security Response Team.
The imap package provides server daemons for both the IMAP (Internet Message Access Protocol) and POP (Post Office Protocol) mail access protocols. A buffer overflow flaw was found in the c-client IMAP client. An attacker could create a malicious IMAP server that if connected to by a victim could execute arbitrary code on the client machine. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0297 to this issue. Users of imap are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.