Multiple vulnerabilities have been discovered in the argument
parsers of the 'partial' and 'fetch' commands of the Cyrus IMAP Server
(CAN-2004-1012, CAN-2004-1013). There are also buffer overflows in the
'imap magic plus' code that are vulnerable to exploitation as well
(CAN-2004-1011, CAN-2004-1015).
Impact
An attacker can exploit these vulnerabilities to execute arbitrary
code with the rights of the user running the Cyrus IMAP Server.
Workaround
There is no known workaround at this time.
Resolution
All Cyrus-IMAP Server users should upgrade to the latest version:
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.