52543 : avahi-daemon avahi-core/server.c originates_from_local_legacy_unicast_socket Function mDNS Query Packet Handling DoS
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Timeline

Disclosure Date
2009-03-02

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2009-0758" target="_blank">CVE</a>)</em> : The originates_from_local_legacy_unicast_socket function in avahi-core/server.c in avahi-daemon 0.6.23 does not account for the network byte order of a port number when processing incoming multicast packets, which allows remote attackers to cause a denial of service (network bandwidth and CPU consumption) via a crafted legacy unicast mDNS query packet that triggers a multicast packet storm.

Classification

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

Products

Unknown or Incomplete

References

CVE ID: 2009-0758 (see also: NVD)
Secunia Advisory ID: 34083 34592 38420 40584 40853 41660
Vendor Specific News/Changelog Entry: http://archives.gentoo.org/gentoo-announce/msg_86729debcddf70192e3b351f7ab5a8c4.xml
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=517683
http://lists.debian.org/debian-security-announce/2010/msg00131.html
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00000.html
Other Advisory URL: http://www.openwall.com/lists/oss-security/2009/03/02/1
Vendor Specific Advisory URL: http://www.ubuntu.com/usn/usn-992-1
RedHat RHSA: https://rhn.redhat.com/errata/RHSA-2010-0528.html

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 7.8
Source: nvd.nist.gov | Generated: 2009-03-04 | Disagree?

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