SB2011053104 - Resource management error in Unbound
Published: May 31, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011053104
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-2011-1922)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
daemon/worker.c in Unbound 1.x before 1.4.10, when debugging functionality and the interface-automatic option are enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DNS request that triggers improper error handling.
Remediation
Install update from vendor's website.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061243.html
- http://osvdb.org/72750
- http://secunia.com/advisories/44865
- http://unbound.nlnetlabs.nl/downloads/CVE-2011-1922.txt
- http://www.kb.cert.org/vuls/id/531342
- http://www.securityfocus.com/bid/47986
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67645