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Fencer Vulns
medium 5.0

CVE-2008-5081 json

The originates_from_local_legacy_unicast_socket function (avahi-core/server.c) in avahi-daemon in Avahi before 0.6.24 allows remote attacke…

published 2008-12-17 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-5060

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
59.2%
EPSS 59.2% chance of exploitation in 30 days, percentile 99.1%
public exploits
2
Metasploit, Exploit-DB

Summary

The originates_from_local_legacy_unicast_socket function (avahi-core/server.c) in avahi-daemon in Avahi before 0.6.24 allows remote attackers to cause a denial of service (crash) via a crafted mDNS packet with a source port of 0, which triggers an assertion failure.

Patch / fix

  • avahi Debian 14, Debian 13, Debian 12 0.6.23-3

debian advisories DEBIAN-CVE-2008-5081

  • avahi RHEL 5 0.6.16-1.el5_2.1
  • avahi-qt3 RHEL 5 0.6.16-1.el5_2.1
  • avahi-glib RHEL 5 0.6.16-1.el5_2.1
  • avahi-tools RHEL 5 0.6.16-1.el5_2.1
  • avahi-compat-howl RHEL 5 0.6.16-1.el5_2.1
  • avahi-compat-libdns_sd RHEL 5 0.6.16-1.el5_2.1

red hat advisories RHSA-2009:0013

  • avahi openSUSE Tumbleweed 0.8-7.2

opensuse advisories openSUSE-SU-2024:10643-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2008-5081 updated cvss 3.3

avahi: avahi-daemon DoS (application abort) via packet with source port 0

  • Red Hat Enterprise Linux (v. 5 server) avahi 0.6.16-1.el5_2.1, avahi-qt3 0.6.16-1.el5_2.1, avahi-glib 0.6.16-1.el5_2.1, avahi-tools 0.6.16-1.el5_2.1, avahi-compat-howl 0.6.16-1.el5_2.1, avahi-compat-libdns_sd 0.6.16-1.el5_2.1 Red Hat Enterprise Linux Desktop (v. 5 client) avahi 0.6.16-1.el5_2.1, avahi-qt3 0.6.16-1.el5_2.1, avahi-glib 0.6.16-1.el5_2.1, avahi-tools 0.6.16-1.el5_2.1, avahi-compat-howl 0.6.16-1.el5_2.1, avahi-compat-libdns_sd 0.6.16-1.el5_2.1 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) avahi 0.6.16-1.el5_2.1, avahi-qt3 0.6.16-1.el5_2.1, avahi-glib 0.6.16-1.el5_2.1, avahi-tools 0.6.16-1.el5_2.1, avahi-compat-howl 0.6.16-1.el5_2.1, avahi-compat-libdns_sd 0.6.16-1.el5_2.1
    fixed: vendor fix RHSA-2009:0013

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (Metasploit auxiliary/dos/mdns/avahi_portzero)
  2. Published

Exploit prediction

59.22% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.