Sendmail < 8.9.3 Header Parsing Redirection DoS

Medium Nessus Network Monitor Plugin ID 2012

Synopsis

The remote host is vulnerable to a Denial of Service (DoS) attack.

Description

The remote Sendmail server has a flaw in the way it processes the headers of messages. An attacker may exploit this flaw to force this server to fail by sending an e-mail with a large number of headers.

Solution

Upgrade to Sendmail 8.9.3 or higher.

Plugin Details

Severity: Medium

ID: 2012

File Name: 2012.prm

Family: SMTP Servers

Published: 2004/08/18

Modified: 2016/11/23

Dependencies: 2046

Nessus ID: 11352

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5

Temporal Score: 4.1

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

CVSSv3

Base Score: 5.3

Temporal Score: 4.9

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS3#E:F/RL:O/RC:C

Reference Information

CVE: CVE-1999-0393

BID: 8674