70948 : Avahi avahi-core/socket.c Empty UDP Packet Remote DoS
Printer | http://osvdb.org/70948 | Email This | Edit Vulnerability

Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
7	1412	about 2 years ago	almost 2 years ago	17 times	100%

Timeline

Disclosure Date
2011-02-18

Description

Avahi contains a flaw that may allow a remote denial of service. The issue is triggered when 'avahi-core/socket.c' in 'avahi-daemon' fails to properly handle empty IPv4 or IPv6 UDP packets sent to port 5353, allowing a remote attacker to cause an infinite loop which will trigger a denial of service.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Solution: Patch / RCS
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Avahi has committed a source code patch to address this vulnerability which is slated to be included in version 0.6.29.

Products

The Avahi Team	Avahi	0.6.24
		0.6.25
		0.6.26
		0.6.27
		0.6.28

References

CVE ID: 2011-1002 (see also: NVD)
Secunia Advisory ID: 43361 43465 43605 43673 44131 45960 46503
Vendor Specific Advisory URL: http://git.0pointer.de/?p=avahi.git;a=commitdiff;h=46109dfec75534fe270c0ab902576f685d5ab3a6
http://www.avahi.org/ticket/325
http://www.debian.org/security/2011/dsa-2174
http://www.gentoo.org/security/en/glsa/glsa-201110-17.xml
https://hermes.opensuse.org/messages/7511998
https://lists.ubuntu.com/archives/ubuntu-security-announce/2011-March/001273.html
Vendor Specific News/Changelog Entry: http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065686.html
https://bugzilla.redhat.com/show_bug.cgi?id=667187
RedHat RHSA: https://rhn.redhat.com/errata/RHSA-2011-0436.html

Tools & Filters

	52666 53400 54600

Credit

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2011-02-22 | Disagree?

Comments

Add Comment Hide Add Comment

No Comments.

The database information may change without any notice. Use of the information constitutes acceptance for use in an AS IS condition, and there are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the copyright holder or distributor (OSVDB or OSF) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.