CVE-2009-0758

HighCVSS 7.8/10Last modified Jun 16, 2026

Description

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.

Metrics

CVSS 2.0 7.8/10AV:N/AC:L/Au:N/C:N/I:N/A:C

Weakness enumeration

CWE-399

Affected software

No affected versions have been published.

Timeline

Published
Mar 3, 2009
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2009-0758: High severity, CVSS 7.8 | Vulnix