Vulnerability Monitor

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CVE-2011-0530

Buffer overflow in the mainloop function in nbd-server.c in the server in Network Block Device (nbd) before 2.9.20 might allow remote attackers to execute arbitrary code via a long request. NOTE: this issue exists because of a CVE-2005-3534 regression.

Security Impact Summary

CVE-2011-0530 is a security vulnerability that . Impacting 1 product from wouter_verhelst organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2011, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2011-02-22T19:00:00.940

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	wouter_verhelst	nbd	≤ 2.9.19	Yes
Application	wouter_verhelst	nbd	2.9.0	Yes
Application	wouter_verhelst	nbd	2.9.1	Yes
Application	wouter_verhelst	nbd	2.9.2	Yes
Application	wouter_verhelst	nbd	2.9.3	Yes
Application	wouter_verhelst	nbd	2.9.4	Yes
Application	wouter_verhelst	nbd	2.9.5	Yes
Application	wouter_verhelst	nbd	2.9.6	Yes
Application	wouter_verhelst	nbd	2.9.7	Yes
Application	wouter_verhelst	nbd	2.9.8	Yes
Application	wouter_verhelst	nbd	2.9.9	Yes
Application	wouter_verhelst	nbd	2.9.10	Yes
Application	wouter_verhelst	nbd	2.9.11	Yes
Application	wouter_verhelst	nbd	2.9.12	Yes
Application	wouter_verhelst	nbd	2.9.13	Yes
Application	wouter_verhelst	nbd	2.9.14	Yes
Application	wouter_verhelst	nbd	2.9.15	Yes
Application	wouter_verhelst	nbd	2.9.16	Yes
Application	wouter_verhelst	nbd	2.9.17	Yes
Application	wouter_verhelst	nbd	2.9.18	Yes

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=611187 ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/054071.html Patch ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/054083.html Patch ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html ([email protected])
http://openwall.com/lists/oss-security/2011/01/28/3 Patch ([email protected])
http://openwall.com/lists/oss-security/2011/01/31/7 Patch ([email protected])
http://secunia.com/advisories/43353 Vendor Advisory ([email protected])
http://secunia.com/advisories/43610 ([email protected])
http://security.gentoo.org/glsa/glsa-201206-35.xml ([email protected])
http://www.debian.org/security/2011/dsa-2183 ([email protected])
http://www.securityfocus.com/bid/46572 ([email protected])
http://www.vupen.com/english/advisories/2011/0403 Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2011/0582 ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=673562 Patch ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/65720 ([email protected])
https://github.com/yoe/nbd/commit/3ef52043861ab16352d49af89e048ba6339d6df8 Patch ([email protected])
https://hermes.opensuse.org/messages/8086846 ([email protected])
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=611187 (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/054071.html Patch (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/054083.html Patch (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/01/28/3 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://openwall.com/lists/oss-security/2011/01/31/7 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/43353 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/43610 (af854a3a-2127-422b-91ae-364da2661108)
http://security.gentoo.org/glsa/glsa-201206-35.xml (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2011/dsa-2183 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/46572 (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2011/0403 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2011/0582 (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=673562 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/65720 (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/yoe/nbd/commit/3ef52043861ab16352d49af89e048ba6339d6df8 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://hermes.opensuse.org/messages/8086846 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For wouter_verhelst's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.