SB2011060201 - Resource management error in Unbound
Published: June 2, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011060201
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource management error (CVE-ID: CVE-2009-4008)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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.
Remediation
Install update from vendor's website.