RedHat: Moderate: dnsmasq security update
Summary
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.
Summary
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
References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1447 http://www.redhat.com/security/updates/classification/#moderate https://thekelleys.org.uk/dnsmasq/CHANGELOG
Package List
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
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:
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
Topic
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.
Topic
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
Bugs Fixed
449345 - CVE-2008-1447 implement source UDP port randomization (CERT VU#800113)