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TI-2008-04834 Aliases CVE-2008-5081GHSA-r2cw-w385-f36j

The originates_from_local_legacy_unicast_socket function (avahi-core/server.c) in…

Priority MEDIUM 57CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.

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.

Why it matters now

EPSS 0.59223 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 30

CPEVersionsRoleVendor
cpe:2.3:a:avahi:avahi:*:*:*:*:*:*:*:*up to 0.6.23Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.1:*:*:*:*:*:*:*0.1Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.2:*:*:*:*:*:*:*0.2Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.3:*:*:*:*:*:*:*0.3Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.4:*:*:*:*:*:*:*0.4Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.5:*:*:*:*:*:*:*0.5Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.5.1:*:*:*:*:*:*:*0.5.1Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.5.2:*:*:*:*:*:*:*0.5.2Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.1:*:*:*:*:*:*:*0.6.1Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.2:*:*:*:*:*:*:*0.6.2Vulnerableavahi
  • cpe:2.3:a:avahi:avahi:*:*:*:*:*:*:*:* Versions up to 0.6.23 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.1:*:*:*:*:*:*:* Versions 0.1 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.2:*:*:*:*:*:*:* Versions 0.2 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.3:*:*:*:*:*:*:* Versions 0.3 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.4:*:*:*:*:*:*:* Versions 0.4 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.5:*:*:*:*:*:*:* Versions 0.5 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.5.1:*:*:*:*:*:*:* Versions 0.5.1 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.5.2:*:*:*:*:*:*:* Versions 0.5.2 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.1:*:*:*:*:*:*:* Versions 0.6.1 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.2:*:*:*:*:*:*:* Versions 0.6.2 Vulnerable ·avahi
Show 20 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:avahi:avahi:0.6.3:*:*:*:*:*:*:*0.6.3Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.4:*:*:*:*:*:*:*0.6.4Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.5:*:*:*:*:*:*:*0.6.5Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.6:*:*:*:*:*:*:*0.6.6Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.7:*:*:*:*:*:*:*0.6.7Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.8:*:*:*:*:*:*:*0.6.8Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.9:*:*:*:*:*:*:*0.6.9Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.10:*:*:*:*:*:*:*0.6.10Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.11:*:*:*:*:*:*:*0.6.11Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.12:*:*:*:*:*:*:*0.6.12Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.13:*:*:*:*:*:*:*0.6.13Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.14:*:*:*:*:*:*:*0.6.14Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.15:*:*:*:*:*:*:*0.6.15Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.16:*:*:*:*:*:*:*0.6.16Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.17:*:*:*:*:*:*:*0.6.17Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.18:*:*:*:*:*:*:*0.6.18Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.19:*:*:*:*:*:*:*0.6.19Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.20:*:*:*:*:*:*:*0.6.20Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.21:*:*:*:*:*:*:*0.6.21Vulnerableavahi
cpe:2.3:a:avahi:avahi:0.6.22:*:*:*:*:*:*:*0.6.22Vulnerableavahi
  • cpe:2.3:a:avahi:avahi:0.6.3:*:*:*:*:*:*:* Versions 0.6.3 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.4:*:*:*:*:*:*:* Versions 0.6.4 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.5:*:*:*:*:*:*:* Versions 0.6.5 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.6:*:*:*:*:*:*:* Versions 0.6.6 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.7:*:*:*:*:*:*:* Versions 0.6.7 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.8:*:*:*:*:*:*:* Versions 0.6.8 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.9:*:*:*:*:*:*:* Versions 0.6.9 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.10:*:*:*:*:*:*:* Versions 0.6.10 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.11:*:*:*:*:*:*:* Versions 0.6.11 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.12:*:*:*:*:*:*:* Versions 0.6.12 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.13:*:*:*:*:*:*:* Versions 0.6.13 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.14:*:*:*:*:*:*:* Versions 0.6.14 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.15:*:*:*:*:*:*:* Versions 0.6.15 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.16:*:*:*:*:*:*:* Versions 0.6.16 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.17:*:*:*:*:*:*:* Versions 0.6.17 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.18:*:*:*:*:*:*:* Versions 0.6.18 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.19:*:*:*:*:*:*:* Versions 0.6.19 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.20:*:*:*:*:*:*:* Versions 0.6.20 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.21:*:*:*:*:*:*:* Versions 0.6.21 Vulnerable ·avahi
  • cpe:2.3:a:avahi:avahi:0.6.22:*:*:*:*:*:*:* Versions 0.6.22 Vulnerable ·avahi

Remediation

Red Hat 1 advisory

  • RHSA-2009:0013 Released 2009-01-12 · Red Hat rating Moderate
    avahi security update
    • Red Hat Enterprise Linux (v. 5 server) avahi-0.6.16-1.el5_2.1, avahi-0.6.16-1.el5_2.1.i386, avahi-0.6.16-1.el5_2.1.ia64 +41
    • Red Hat Enterprise Linux Desktop (v. 5 client) avahi-0.6.16-1.el5_2.1, avahi-0.6.16-1.el5_2.1.i386, avahi-compat-howl-0.6.16-1.el5_2.1 +9
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) avahi-0.6.16-1.el5_2.1, avahi-compat-howl-devel-0.6.16-1.el5_2.1, avahi-compat-howl-devel-0.6.16-1.el5_2.1.i386 +8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2009:0013
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2009:0013
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2009:0013

Timeline

  1. 2026-10-02 Threatist record created from CVE-2008-5081
  2. 2026-10-03 Alias added: GHSA-r2cw-w385-f36j

References

Exploit 1

Advisory 4

Other 3

  • TI-2026-27157 Avahi: Reachable assertion in `transport_flags_from_domain()` via conflicting publish flags crashes avahi-daemon CVSS 3.1MEDIUM 5.5
  • TI-2025-37060 Avahi: simple protocol server ignores accepts unlimited connections and logs failures without limit CVSS 3.1MEDIUM 5.5
  • TI-2017-04303 avahi-daemon in Avahi through 0.6.32 and 0.7 inadvertently responds to IPv6 unicast… CVSS 3.1CRITICAL 9.1
  • TI-2011-00862 avahi-core/socket.c in avahi-daemon in Avahi before 0.6.29 allows remote attackers to… CVSS 2.0MEDIUM 5.0
  • TI-2021-08399 avahi-daemon-check-dns.sh in the Debian avahi package through 0.8-4 is executed as root… CVSS 3.1HIGH 7.8
  • TI-2026-19669 Avahi has Uncontrolled Recursion in lookup_handle_cname function CVSS 3.1MEDIUM 6.5
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences