Rule:--Sid:3058--Summary:This event is generated when a remote user sends an overly long string to an IMAP server via the command COPY. This may indicate an attempt to exploit a buffer overflow condition.--Impact:Serious. Possible remote execution of arbitrary code, which may lead toa remote root compromise.--Detailed Information:When a large amount of data is sent to a vulnerable IMAP server in the COPY command, a buffer overflow condition may occur. This can allow theattacker to execute arbitrary code, which may allow the attacker to gainroot access to the compromised server.The attacker must use a valid IMAP account to exploit this condition.--Affected Systems:	IMAP servers--Attack Scenarios:An attacker can send a sufficiently long COPY command to the IMAPserver, creating a buffer overflow condition. This can then allow theattacker to execute code of their choosing and possibly gain root accessto the compromised server.--Ease of Attack:Simple. Exploits exist.--False Positives:None known.--False Negatives:None known.--Corrective Action:Apply the appropriate patches for your operating system.Check the host for signs of compromise.--Contributors:Sourcefire Vulnerability Research TeamBrian Caswell <bmc@sourcefire.com>Nigel Houghton <nigel.houghton@sourcefire.com>--Additional References:--