Moderate: dnsmasq security update

Advisory:	RHSA-2008:0789-3
Type:	Security Advisory
Severity:	Moderate
Issued on:	2008-08-11
Last updated on:	2008-08-11
Affected Products:	Red Hat Enterprise Linux (v. 5 server) Red Hat Enterprise Linux Desktop (v. 5 client) Red Hat Enterprise Linux EUS (v. 5.2.z server)
OVAL:	com.redhat.rhsa-20080789.xml
CVEs (cve.mitre.org):	CVE-2008-1447

Details

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.

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.

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

Updated packages

Red Hat Enterprise Linux (v. 5 server)

SRPMS:
dnsmasq-2.45-1.el5_2.1.src.rpm File outdated by: RHSA-2009:1238	`c7f0bedd7d166f2fa37f8eeb5b816cca`

IA-32:
dnsmasq-2.45-1.el5_2.1.i386.rpm File outdated by: RHSA-2009:1238	`9094a3a47a5db55e11beda6007ff35d0`

IA-64:
dnsmasq-2.45-1.el5_2.1.ia64.rpm File outdated by: RHSA-2009:1238	`647eb08c508ef425546a20d3d7879712`

PPC:
dnsmasq-2.45-1.el5_2.1.ppc.rpm File outdated by: RHSA-2009:1238	`8a00d895886b25e55f033e90b3e4c37e`

s390x:
dnsmasq-2.45-1.el5_2.1.s390x.rpm File outdated by: RHSA-2009:1238	`253ccb76d6c5bf6a8469aff12c88dce6`

x86_64:
dnsmasq-2.45-1.el5_2.1.x86_64.rpm File outdated by: RHSA-2009:1238	`85e19087dc3086d97ca0f0fd8fdf16d1`

Red Hat Enterprise Linux Desktop (v. 5 client)

SRPMS:
dnsmasq-2.45-1.el5_2.1.src.rpm File outdated by: RHSA-2009:1238	`c7f0bedd7d166f2fa37f8eeb5b816cca`

IA-32:
dnsmasq-2.45-1.el5_2.1.i386.rpm File outdated by: RHSA-2009:1238	`9094a3a47a5db55e11beda6007ff35d0`

x86_64:
dnsmasq-2.45-1.el5_2.1.x86_64.rpm File outdated by: RHSA-2009:1238	`85e19087dc3086d97ca0f0fd8fdf16d1`

Red Hat Enterprise Linux EUS (v. 5.2.z server)

SRPMS:
dnsmasq-2.45-1.el5_2.1.src.rpm File outdated by: RHSA-2009:1238	`c7f0bedd7d166f2fa37f8eeb5b816cca`

IA-32:
dnsmasq-2.45-1.el5_2.1.i386.rpm	`9094a3a47a5db55e11beda6007ff35d0`

IA-64:
dnsmasq-2.45-1.el5_2.1.ia64.rpm	`647eb08c508ef425546a20d3d7879712`

PPC:
dnsmasq-2.45-1.el5_2.1.ppc.rpm	`8a00d895886b25e55f033e90b3e4c37e`

s390x:
dnsmasq-2.45-1.el5_2.1.s390x.rpm	`253ccb76d6c5bf6a8469aff12c88dce6`

x86_64:
dnsmasq-2.45-1.el5_2.1.x86_64.rpm	`85e19087dc3086d97ca0f0fd8fdf16d1`

(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

449345 - CVE-2008-1447 implement source UDP port randomization (CERT VU#800113)
454869 - CVE-2008-1447 implement source UDP port randomization (CERT VU#800113) [rhel-5.2.z]

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

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

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/