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Test ID:1.3.6.1.4.1.25623.1.0.69655
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2011:0779
Summary:NOSUMMARY
Description:Description:
The remote host is missing updates announced in
advisory RHSA-2011:0779.

Avahi is an implementation of the DNS Service Discovery and Multicast DNS
specifications for Zero Configuration Networking. It facilitates service
discovery on a local network. Avahi and Avahi-aware applications allow you
to plug your computer into a network and, with no configuration, view other
people to chat with, view printers to print to, and find shared files on
other computers.

A flaw was found in the way the Avahi daemon (avahi-daemon) processed
Multicast DNS (mDNS) packets with an empty payload. An attacker on the
local network could use this flaw to cause avahi-daemon on a target system
to enter an infinite loop via an empty mDNS UDP packet. (CVE-2011-1002)

This update also fixes the following bug:

* Previously, the avahi packages in Red Hat Enterprise Linux 6 were not
compiled with standard RPM CFLAGS
therefore, the Stack Protector and
Fortify Source protections were not enabled, and the debuginfo packages did
not contain the information required for debugging. This update corrects
this issue by using proper CFLAGS when compiling the packages. (BZ#629954,
BZ#684276)

All users are advised to upgrade to these updated packages, which contain a
backported patch to correct these issues. After installing the update,
avahi-daemon will be restarted automatically.

Solution:
Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

http://rhn.redhat.com/errata/RHSA-2011-0779.html

Risk factor : Medium

CVSS Score:
5.0

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2011-1002
BugTraq ID: 46446
http://www.securityfocus.com/bid/46446
Debian Security Information: DSA-2174 (Google Search)
http://www.debian.org/security/2011/dsa-2174
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055858.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:037
http://www.mandriva.com/security/advisories?name=MDVSA-2011:040
http://xorl.wordpress.com/2011/02/20/cve-2011-1002-avahi-daemon-remote-denial-of-service/
http://openwall.com/lists/oss-security/2011/02/18/1
http://openwall.com/lists/oss-security/2011/02/18/4
http://www.openwall.com/lists/oss-security/2011/02/22/9
http://osvdb.org/70948
http://www.redhat.com/support/errata/RHSA-2011-0436.html
http://www.redhat.com/support/errata/RHSA-2011-0779.html
http://secunia.com/advisories/43361
http://secunia.com/advisories/43465
http://secunia.com/advisories/43605
http://secunia.com/advisories/43673
http://secunia.com/advisories/44131
SuSE Security Announcement: SUSE-SR:2011:005 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://ubuntu.com/usn/usn-1084-1
http://www.vupen.com/english/advisories/2011/0448
http://www.vupen.com/english/advisories/2011/0499
http://www.vupen.com/english/advisories/2011/0511
http://www.vupen.com/english/advisories/2011/0565
http://www.vupen.com/english/advisories/2011/0601
http://www.vupen.com/english/advisories/2011/0670
http://www.vupen.com/english/advisories/2011/0969
XForce ISS Database: avahi-udp-dos(65524)
https://exchange.xforce.ibmcloud.com/vulnerabilities/65524
XForce ISS Database: avahi-udp-packet-dos(65525)
https://exchange.xforce.ibmcloud.com/vulnerabilities/65525
Common Vulnerability Exposure (CVE) ID: CVE-2010-2244
Debian Security Information: DSA-2086 (Google Search)
http://www.debian.org/security/2010/dsa-2086
http://lists.fedoraproject.org/pipermail/package-announce/2010-July/043820.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-July/043800.html
http://www.mandriva.com/security/advisories?name=MDVSA-2010:204
http://www.openwall.com/lists/oss-security/2010/06/23/4
http://marc.info/?l=oss-security&m=127748459505200&w=2
http://www.securitytracker.com/id?1024200
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