CVE-2006-6870

The consume_labels function in avahi-core/dns.c in Avahi before 0.6.16 allows remote attackers to...

5.0 MediumFix available

The consume_labels function in avahi-core/dns.c in Avahi before 0.6.16 allows remote attackers to cause a denial of service (infinite loop) via a crafted compressed DNS response with a label that points to itself.

Exploit likelihood

2.44%Down 1.3 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2006-6870
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2006-6870
Updated: 2026-11-02

EUVDEUVD-2006-6853 No score

Record: EUVD-2006-6853
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mc78-8grw-5ghv No score

The consume_labels function in avahi-core/dns.c in Avahi before 0.6.16 allows remote attackers to...

Record: GHSA-mc78-8grw-5ghv
Updated: 2026-11-02

OSV No score

Record: CVE-2006-6870
Updated: 2026-11-02

OSVDEBIAN-CVE-2006-6870 No score

Record: DEBIAN-CVE-2006-6870
Updated: 2026-11-02

Affected products

avahi

Affected packages

Affected packages
Package	Affected	Fixed
`avahi` Debian:12	before 0.6.16-1	0.6.16-1
`avahi` Debian:13	before 0.6.16-1	0.6.16-1
`avahi` Debian:14	before 0.6.16-1	0.6.16-1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2006-6870 is a medium vulnerability (CVSS 5.0) in Avahi, published December 31, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.44%, the 84th percentile. Fixed in avahi 0.6.16-1.

References

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