- Issued:
- 2008-08-11
- Updated:
- 2008-08-11
RHSA-2008:0789 - Moderate: dnsmasq security update
Synopsis
Moderate: dnsmasq security update
Type/Severity
Security Advisory Moderate
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.
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.
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 This content is not included.http://kbase.redhat.com/faq/FAQ_58_10188
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.2 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.2 | ia64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 5.2 | i386 |
| Red Hat Enterprise Linux for Power, big endian | 5 | ppc |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 5.2 | ppc |
| Red Hat Enterprise Linux for IBM z Systems | 5 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 5.2 | s390x |
| Red Hat Enterprise Linux Workstation | 5 | x86_64 |
| Red Hat Enterprise Linux Workstation | 5 | i386 |
| Red Hat Enterprise Linux Server | 5 | x86_64 |
| Red Hat Enterprise Linux Server | 5 | ia64 |
| Red Hat Enterprise Linux Server | 5 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 5 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 5 | i386 |
| Red Hat Enterprise Linux Desktop | 5 | x86_64 |
| Red Hat Enterprise Linux Desktop | 5 | i386 |
Updated Packages
- dnsmasq-2.45-1.el5_2.1.ia64.rpm
- dnsmasq-2.45-1.el5_2.1.ppc.rpm
- dnsmasq-2.45-1.el5_2.1.x86_64.rpm
- dnsmasq-2.45-1.el5_2.1.i386.rpm
- dnsmasq-2.45-1.el5_2.1.src.rpm
- dnsmasq-2.45-1.el5_2.1.s390x.rpm
Fixes
CVEs
References
- http://www.redhat.com/security/updates/classification/#moderate
- Content from www.thekelleys.org.uk is not included.Content from www.thekelleys.org.uk is not included.http://www.thekelleys.org.uk/dnsmasq/CHANGELOG
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.