Sendmail < 8.13.8 Header Processing Overflow DoS

medium Nessus Plugin ID 17724
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 2.2


The remote mail server is susceptible to a denial of service attack.


The remote mail server is running a version of Sendmail earlier than 8.13.8. Such versions are reportedly affected by a use-after-free flaw that may allow an attacker to crash the server.


Upgrade to Sendmail 8.13.8 or later.

See Also

Plugin Details

Severity: Medium

ID: 17724

File Name: sendmail_8_13_8.nasl

Version: 1.8

Type: remote

Published: 11/18/2011

Updated: 9/17/2018

Dependencies: sendmail_detect.nbin

Risk Information

Risk Factor: Medium

VPR Score: 2.2

CVSS Score Source: CVE-2006-4434

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 5.3

Temporal Score: 4.6

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:sendmail:sendmail

Required KB Items: installed_sw/Sendmail

Exploit Ease: No known exploits are available

Patch Publication Date: 8/7/2006

Vulnerability Publication Date: 8/9/2006

Reference Information

CVE: CVE-2006-4434

BID: 19714