The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and Sieve support. A buffer overflow flaw was found in the cyrus-imapd NNTP server, nntpd. A remote user able to use the nntpd service could use this flaw to crash the nntpd child process or, possibly, execute arbitrary code with the privileges of the cyrus user. Red Hat would like to thank Greg Banks for repor ...