Executive Summary

Summary
Title New nullmailer packages fix local denial of service
Informations
Name DSA-198 First vendor Publication 2002-11-18
Vendor Debian Last vendor Modification 2002-11-18
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A problem has been discovered in nullmailer, a simple relay-only mail transport agent for hosts that relay mail to a fixed set of smart relays. When a mail is to be delivered locally to a user that doesn't exist, nullmailer tries to deliver it, discovers a user unknown error and stops delivering. Unfortunately, it stops delivering entirely, not only this mail. Hence, it's very easy to craft a denial of service.

This problem has been fixed in version 1.00RC5-16.1woody2 for the current stable distribution (woody) and in version 1.00RC5-17 for the unstable distribution (sid). The old stable distribution (potato) does not contain a nullmailer package.

We recommend that you upgrade your nullmailer package.

wget url will fetch the file for you dpkg -i file.deb will install the referenced file.

If you are using the apt-get package manager, use the line for sources.list as given below:

apt-get update will update the internal database apt-get upgrade will install corrected packages

You may use an automated update by adding the resources from the footer to the proper configuration.

Debian GNU/Linux 3.0 alias woody

Original Source

Url : http://www.debian.org/security/2002/dsa-198

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

OpenVAS Exploits

Date Description
2008-01-17 Name : Debian Security Advisory DSA 198-1 (nullmailer)
File : nvt/deb_198_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
14522 nullmailer Local Nonexistent User Mail DoS

Nessus® Vulnerability Scanner

Date Description
2004-09-29 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-198.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:29:10
  • Multiple Updates