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Test ID:1.3.6.1.4.1.25623.1.0.69144
Category:Ubuntu Local Security Checks
Title:Ubuntu USN-1084-1 (avahi)
Summary:Ubuntu USN-1084-1 (avahi)
Description:The remote host is missing an update to avahi
announced via advisory USN-1084-1.

Details follow:

It was discovered that Avahi incorrectly handled empty UDP packets. A
remote attacker could send a specially-crafted packet and cause Avahi to
hang, resulting in a denial of service.

Solution:
The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 8.04 LTS:
libavahi-core5 0.6.22-2ubuntu4.3

Ubuntu 9.10:
libavahi-core6 0.6.25-1ubuntu5.3

Ubuntu 10.04 LTS:
libavahi-core6 0.6.25-1ubuntu6.2

Ubuntu 10.10:
libavahi-core7 0.6.27-2ubuntu3.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

http://www.securityspace.com/smysecure/catid.html?in=USN-1084-1

Risk factor : Medium
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2011-1002
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://xorl.wordpress.com/2011/02/20/cve-2011-1002-avahi-daemon-remote-denial-of-service/
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://www.redhat.com/support/errata/RHSA-2011-0436.html
http://www.redhat.com/support/errata/RHSA-2011-0779.html
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
BugTraq ID: 46446
http://www.securityfocus.com/bid/46446
http://osvdb.org/70948
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
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)
http://xforce.iss.net/xforce/xfdb/65524
XForce ISS Database: avahi-udp-packet-dos(65525)
http://xforce.iss.net/xforce/xfdb/65525
CopyrightCopyright (c) 2011 E-Soft Inc. http://www.securityspace.com

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