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This script is Copyright (C) 2012 Tenable Network Security, Inc.
The remote Scientific Linux host is missing one or more security
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.
This update also fixes the following bug :
- Previously, the avahi packages in Scientific Linux 6
were not compiled with standard RPM CFLAGS
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.
See also :
Update the affected packages.
Risk factor :
Medium / CVSS Base Score : 5.0
Public Exploit Available : true
Family: Scientific Linux Local Security Checks
Nessus Plugin ID: 61038 ()
CVE ID: CVE-2011-1002
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