OSVDB ID: 5855 Title: Microsoft Exchange MTA HELO Command Remote Overflow |
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Description |
A remote overflow exists in the Microsoft Exchange Mail Transfer Agent (MTA). The 'HELO' command fails to perform proper bounds checking resulting in a buffer overflow. With an overly long request to the command, a remote attacker can cause the SMTP service to crash resulting in a loss of availability. |
Classification |
Location:
Remote / Network Access
Attack Type: Denial of Service, Input Manipulation Impact: Loss of Integrity, Loss of Availability Exploit: Exploit Public |
Solution |
Contact your vendor for an appropriate upgrade. An upgrade is required as there are no known workarounds. |
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References |
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Credit |
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cybernet.co.nz -