Security Advisory 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)
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File outdated by:  RHSA-2009:1238
    MD5: c7f0bedd7d166f2fa37f8eeb5b816cca
 
IA-32:
dnsmasq-2.45-1.el5_2.1.i386.rpm
File outdated by:  RHSA-2009:1238
    MD5: 9094a3a47a5db55e11beda6007ff35d0
 
IA-64:
dnsmasq-2.45-1.el5_2.1.ia64.rpm
File outdated by:  RHSA-2009:1238
    MD5: 647eb08c508ef425546a20d3d7879712
 
PPC:
dnsmasq-2.45-1.el5_2.1.ppc.rpm
File outdated by:  RHSA-2009:1238
    MD5: 8a00d895886b25e55f033e90b3e4c37e
 
s390x:
dnsmasq-2.45-1.el5_2.1.s390x.rpm
File outdated by:  RHSA-2009:1238
    MD5: 253ccb76d6c5bf6a8469aff12c88dce6
 
x86_64:
dnsmasq-2.45-1.el5_2.1.x86_64.rpm
File outdated by:  RHSA-2009:1238
    MD5: 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File outdated by:  RHSA-2009:1238
    MD5: c7f0bedd7d166f2fa37f8eeb5b816cca
 
IA-32:
dnsmasq-2.45-1.el5_2.1.i386.rpm
File outdated by:  RHSA-2009:1238
    MD5: 9094a3a47a5db55e11beda6007ff35d0
 
x86_64:
dnsmasq-2.45-1.el5_2.1.x86_64.rpm
File outdated by:  RHSA-2009:1238
    MD5: 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
    MD5: c7f0bedd7d166f2fa37f8eeb5b816cca
 
IA-32:
dnsmasq-2.45-1.el5_2.1.i386.rpm     MD5: 9094a3a47a5db55e11beda6007ff35d0
 
IA-64:
dnsmasq-2.45-1.el5_2.1.ia64.rpm     MD5: 647eb08c508ef425546a20d3d7879712
 
PPC:
dnsmasq-2.45-1.el5_2.1.ppc.rpm     MD5: 8a00d895886b25e55f033e90b3e4c37e
 
s390x:
dnsmasq-2.45-1.el5_2.1.s390x.rpm     MD5: 253ccb76d6c5bf6a8469aff12c88dce6
 
x86_64:
dnsmasq-2.45-1.el5_2.1.x86_64.rpm     MD5: 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



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/