CVE-2011-1922

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-05-31 · updated 2026-06-16
Weakness: CWE-399

Description

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.

Affected products

NLnet Labs Unbound: 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, 1.2.0 (+16)

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
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

Get alerted when CVE-2011-1922 or the next vulnerability affects your stack