Technical Description

Multiple vulnerabilities were identified in Kerio MailServer, which may be exploited by attackers to cause a denial of service. The first flaw is due to an unspecified error that occurs when downloading certain e-mail in IMAP or Outlook with KOC (Kerio Outlook Connector), which may cause the application to crash. The second vulnerability occurs when parsing e-mail with multiple embedded ".eml" attachments, which may be exploited to crash a vulnerable application. The third issue is due to an unspecified error that occurs when viewing certain recurrent calendar events, which may be exploited to consume high CPU resources on a vulnerable system.

Affected Products

Kerio MailServer version 6.0.9 and prior

Solution

Upgrade to Kerio MailServer version 6.0.10 :
http://www.kerio.com/kms_download.html

References

http://www.vupen.com/english/advisories/2005/0541

Credits

Vulnerability reported by the vendor

ChangeLog

2005-05-13 : Initial release

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