GLSA 201406-24: Dnsmasq: Denial of Service
| Severity: | normal |
| Title: | Dnsmasq: Denial of Service |
| Date: | 06/25/2014 |
| Bugs: | , |
| ID: | 201406-24 |
Synopsis
A vulnerability in Dnsmasq can lead to a Denial of Service condition.Background
Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| net-dns/dnsmasq | < 2.66 | >= 2.66 | All supported architectures |
Description
When used with certain libvirt configurations Dnsmasq replies to queries from prohibited interfaces.
Impact
A remote attackers can cause a Denial of Service via spoofed TCP based DNS queries.
Workaround
There is no known workaround at this time.
Resolution
All Dnsmasq users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.66"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.