CVE-2011-1922

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Summary

CVECVE-2011-1922
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-05-31 20:55:03 UTC
Updated2026-04-29 01:13:23 UTC
Descriptiondaemon/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.

Risk And Classification

Primary CVSS: v2.0 4.3 from [email protected]

AV:N/AC:M/Au:N/C:N/I:N/A:P

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:M/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Nlnetlabs Unbound 1.0.0 All All All
Application Nlnetlabs Unbound 1.0.1 All All All
Application Nlnetlabs Unbound 1.0.2 All All All
Application Nlnetlabs Unbound 1.1.0 All All All
Application Nlnetlabs Unbound 1.1.1 All All All
Application Nlnetlabs Unbound 1.2.0 All All All
Application Nlnetlabs Unbound 1.2.1 All All All
Application Nlnetlabs Unbound 1.3.0 All All All
Application Nlnetlabs Unbound 1.3.1 All All All
Application Nlnetlabs Unbound 1.3.2 All All All
Application Nlnetlabs Unbound 1.3.3 All All All
Application Nlnetlabs Unbound 1.3.4 All All All
Application Nlnetlabs Unbound 1.4.0 All All All
Application Nlnetlabs Unbound 1.4.1 All All All
Application Nlnetlabs Unbound 1.4.2 All All All
Application Nlnetlabs Unbound 1.4.3 All All All
Application Nlnetlabs Unbound 1.4.4 All All All
Application Nlnetlabs Unbound 1.4.5 All All All
Application Nlnetlabs Unbound 1.4.6 All All All
Application Nlnetlabs Unbound 1.4.7 All All All
Application Nlnetlabs Unbound 1.4.8 All All All
Application Nlnetlabs Unbound 1.4.9 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[SECURITY] Fedora 14 Update: unbound-1.4.8-2.fc14 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
unbound.nlnetlabs.nl/downloads/CVE-2011-1922.txt af854a3a-2127-422b-91ae-364da2661108 unbound.nlnetlabs.nl Patch, Vendor Advisory
Unbound DNS Resolver Remote Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
US-CERT Vulnerability Note VU#531342 - Unbound DNS resolver denial of service vulnerability af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org Patch, US Government Resource
osvdb.org/72750 af854a3a-2127-422b-91ae-364da2661108 osvdb.org
Fedora update for unbound - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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