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.
Published 2009-03-03 16:30:05
Updated 2025-04-09 00:30:58
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2009-0758

Exploit prediction scoring system (EPSS) score for CVE-2009-0758

1.26%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 78 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-0758

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.8
HIGH AV:N/AC:L/Au:N/C:N/I:N/A:C
10.0
6.9
NIST

CWE ids for CVE-2009-0758

  • Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2009-0758

  • Red Hat 2010-07-13
    This issue has been addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2010-0528.html.

References for CVE-2009-0758

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