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CVE-2009-0758

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice 992-1
Posted Sep 29, 2010
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 992-1 - It was discovered that Avahi incorrectly handled certain mDNS query packets when the reflector feature is enabled, which is not the default configuration on Ubuntu. A remote attacker could send crafted mDNS queries and perform a denial of service on the server and on the network. This issue only affected Ubuntu 8.04 LTS and 9.04. It was discovered that Avahi incorrectly handled mDNS packets with corrupted checksums. A remote attacker could send crafted mDNS packets and cause Avahi to crash, resulting in a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2009-0758, CVE-2010-2244
MD5 | 51259f29dddbf81b2279161ecb36abde
Debian Linux Security Advisory 2086-1
Posted Aug 6, 2010
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2086-1 - Several vulnerabilities have been discovered in the Avahi mDNS/DNS-SD daemon.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2009-0758, CVE-2010-2244
MD5 | d719a120a9bd6777b3ad692fae005443
Gentoo Linux Security Advisory 200904-10
Posted Apr 8, 2009
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory GLSA 200904-10 - An error in Avahi might lead to a Denial of Service via network and CPU consumption. Rob Leslie reported that the originates_from_local_legacy_unicast_socket() function in avahi-core/server.c does not account for the network byte order of a port number when processing incoming multicast packets, leading to a multicast packet storm. Versions less than 0.6.24-r2 are affected.

tags | advisory, denial of service
systems | linux, gentoo
advisories | CVE-2009-0758
MD5 | 3829ae568b4893b6c57d2349753e62bf
Mandriva Linux Security Advisory 2009-076
Posted Mar 16, 2009
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2009-076 - A security vulnerability has been identified and fixed in avahi which could allow remote attackers to cause a denial of service (network bandwidth and CPU consumption) via a crafted legacy unicast mDNS query packet. The updated packages have been patched to prevent this.

tags | advisory, remote, denial of service
systems | linux, mandriva
advisories | CVE-2009-0758
MD5 | 1f78d5377ca7dbd37202c7c386830b84
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