[RHSA-2008:0789-01] Moderate: dnsmasq security update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Moderate: dnsmasq security update

Advisory ID: RHSA-2008:0789-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0789.html

Issue date: 2008-08-11

CVE Names: CVE-2008-1447

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1. Summary:

 

An updated dnsmasq package that implements UDP source-port randomization

is now available for Red Hat Enterprise Linux 5.

 

This update has been rated as having moderate security impact by the Red

Hat Security Response Team.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

 

3. Description:

 

Dnsmasq is lightweight DNS forwarder and DHCP server. It is designed to

provide DNS and, optionally, DHCP, to a small network.

 

The dnsmasq DNS resolver used a fixed source UDP port. This could have made

DNS spoofing attacks easier. dnsmasq has been updated to use random UDP

source ports, helping to make DNS spoofing attacks harder. (CVE-2008-1447)

 

All dnsmasq users are advised to upgrade to this updated package, that

upgrades dnsmasq to version 2.45, which resolves this issue.

 

4. Solution:

 

Before applying this update, make sure that all previously-released

errata relevant to your system have been applied.

 

This update is available via Red Hat Network. Details on how to use

the Red Hat Network to apply this update are available at

http://kbase.redhat.com/faq/FAQ_58_10188

 

5. Bugs fixed (http://bugzilla.redhat.com/):

 

449345 - CVE-2008-1447 implement source UDP port randomization (CERT VU#800113)

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 5 client):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/dnsmasq-2.45-1.el5_2.1.src.rpm

 

i386:

dnsmasq-2.45-1.el5_2.1.i386.rpm

dnsmasq-debuginfo-2.45-1.el5_2.1.i386.rpm

 

x86_64:

dnsmasq-2.45-1.el5_2.1.x86_64.rpm

dnsmasq-debuginfo-2.45-1.el5_2.1.x86_64.rpm

 

Red Hat Enterprise Linux (v. 5 server):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/dnsmasq-2.45-1.el5_2.1.src.rpm

 

i386:

dnsmasq-2.45-1.el5_2.1.i386.rpm

dnsmasq-debuginfo-2.45-1.el5_2.1.i386.rpm

 

ia64:

dnsmasq-2.45-1.el5_2.1.ia64.rpm

dnsmasq-debuginfo-2.45-1.el5_2.1.ia64.rpm

 

ppc:

dnsmasq-2.45-1.el5_2.1.ppc.rpm

dnsmasq-debuginfo-2.45-1.el5_2.1.ppc.rpm

 

s390x:

dnsmasq-2.45-1.el5_2.1.s390x.rpm

dnsmasq-debuginfo-2.45-1.el5_2.1.s390x.rpm

 

x86_64:

dnsmasq-2.45-1.el5_2.1.x86_64.rpm

dnsmasq-debuginfo-2.45-1.el5_2.1.x86_64.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://www.redhat.com/security/team/key/#package

 

7. References:

 

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1447

http://www.redhat.com/security/updates/classification/#moderate

http://www.thekelleys.org.uk/dnsmasq/CHANGELOG

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://www.redhat.com/security/team/contact/

 

Copyright 2008 Red Hat, Inc.

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