Ubuntu 5.04 : courier vulnerability (USN-174-1)

medium Nessus Plugin ID 20584

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

A Denial of Service vulnerability has been discovered in the Courier mail server. Due to a flawed status code check, failed DNS (domain name service) queries for SPF (sender policy framework) were not handled properly and could lead to memory corruption. A malicious DNS server could exploit this to crash the Courier server.

However, SPF is not enabled by default, so you are only vulnerable if you explicitly enabled it.

The Ubuntu 4.10 version of courier is not affected by this.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected packages.

Plugin Details

Severity: Medium

ID: 20584

File Name: ubuntu_USN-174-1.nasl

Version: 1.15

Type: local

Agent: unix

Family: Ubuntu Local Security Checks

Published: 1/15/2006

Updated: 1/19/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.7

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:courier-authdaemon, p-cpe:/a:canonical:ubuntu_linux:courier-authmysql, p-cpe:/a:canonical:ubuntu_linux:courier-authpostgresql, p-cpe:/a:canonical:ubuntu_linux:courier-base, p-cpe:/a:canonical:ubuntu_linux:courier-doc, p-cpe:/a:canonical:ubuntu_linux:courier-faxmail, p-cpe:/a:canonical:ubuntu_linux:courier-imap, p-cpe:/a:canonical:ubuntu_linux:courier-imap-ssl, p-cpe:/a:canonical:ubuntu_linux:courier-ldap, p-cpe:/a:canonical:ubuntu_linux:courier-maildrop, p-cpe:/a:canonical:ubuntu_linux:courier-mlm, p-cpe:/a:canonical:ubuntu_linux:courier-mta, p-cpe:/a:canonical:ubuntu_linux:courier-mta-ssl, p-cpe:/a:canonical:ubuntu_linux:courier-pcp, p-cpe:/a:canonical:ubuntu_linux:courier-pop, p-cpe:/a:canonical:ubuntu_linux:courier-pop-ssl, p-cpe:/a:canonical:ubuntu_linux:courier-ssl, p-cpe:/a:canonical:ubuntu_linux:courier-webadmin, p-cpe:/a:canonical:ubuntu_linux:sqwebmail, cpe:/o:canonical:ubuntu_linux:5.04

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Patch Publication Date: 8/26/2005

Reference Information

CVE: CVE-2005-2151

USN: 174-1

Detections

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