Sendmail Crafted ETRN Commands Remote DoS

medium Nessus Plugin ID 11350


The remote host has an application that is affected by a denial of service vulnerability.


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.


Install Sendmail version 8.10.1 or higher, or install a vendor-supplied patch.

Plugin Details

Severity: Medium

ID: 11350

File Name: sendmail_etrn_dos.nasl

Version: 1.19

Type: remote

Published: 3/11/2003

Updated: 9/17/2018

Supported Sensors: Nessus

Risk Information


Risk Factor: Low

Score: 2.2


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-1999-1109


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:sendmail:sendmail

Required KB Items: installed_sw/Sendmail

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 12/22/1999

Reference Information

CVE: CVE-1999-1109

BID: 904