Description
A bug in the HTML parser in a certain Microsoft HTML library, as used in various third party products, may allow remote attackers to cause a denial of service via certain strings, as reported in GFI MailEssentials for Exchange 9 and 10, and GFI MailSecurity for Exchange 8, which causes emails to remain in IIS or Exchange mail queues.
Affected products
- GFI / MailEssentials9.0 – 9.0
- GFI / MailEssentials10.0 – 10.0
- GFI / MailEssentials10.1 – 10.1
- GFI / mailsecurity8.0 – 8.0