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Sendmail ETRN command DOS
Information
Severity
Severity
Medium
Family
Family
SMTP problems
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
18 years ago
Modified
Modified
5 years ago
Summary
The remote sendmail server, according to its version number, allows remote attackers to cause a denial of service by sending a series of ETRN commands then disconnecting from the server, while Sendmail continues to process the commands after the connection has been terminated.
Solution
Solution
Install sendmail version 8.10.1 and higher, or install a vendor supplied patch.