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CVE-2011-0530

7.5 · HIGH

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.

Published Feb 22, 2011wouter_verhelstCWE-119EPSS 5.28%

Overview

CVE-2011-0530 is a high-severity vulnerability affecting wouter_verhelst nbd. It was published on February 22, 2011 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from wouter_verhelst. Update nbd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
wouter_verhelstnbd0Affected

References

Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=611187Reflists.fedoraproject.org/pipermail/package-announce/2011-February/054071.htmlReflists.fedoraproject.org/pipermail/package-announce/2011-February/054083.htmlReflists.opensuse.org/opensuse-security-announce/2011-04/msg00000.htmlRefopenwall.com/lists/oss-security/2011/01/28/3Refopenwall.com/lists/oss-security/2011/01/31/7Refsecunia.com/advisories/43353Refsecunia.com/advisories/43610Refsecurity.gentoo.org/glsa/glsa-201206-35.xmlRefwww.debian.org/security/2011/dsa-2183

How CyberStrike helps

Frequently asked questions

What is CVE-2011-0530?

CVE-2011-0530 is a high-severity vulnerability affecting wouter_verhelst nbd. It was published on February 22, 2011 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2011-0530?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-0530?

Check the references section for vendor advisories and patches from wouter_verhelst. Update nbd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-0530?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-0530 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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