CVE-2009-4008
unbound - design flaw
EPSS 0.26%
Description
Unbound before 1.4.4 does not send responses for signed zones after mishandling an unspecified query, which allows remote attackers to cause a denial of service (DNSSEC outage) via a crafted query.
How to fix CVE-2009-4008
To remediate CVE-2009-4008, upgrade the affected package to a fixed version below.
- Debian/unbound—upgrade to 1.4.4-1 or later
- Debian/unbound—upgrade to 1.4.6-1~lenny1 or later
Is CVE-2009-4008 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.4.4-1
- from 0, < 1.4.6-1~lenny1