CVE-2011-0530
CVE-2011-0530 is a high-severity vulnerability in Wouter Verhelst Nbd with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 5% (92nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Wouter Verhelst Nbd
- Published:
- Last modified:
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2011-0530?
- CVE-2011-0530 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2011-0530 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2011-0530?
- CVE-2011-0530 primarily affects Wouter Verhelst Nbd. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2011-0530?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2011-0530 published?
- CVE-2011-0530 was published on 2011-02-22 and last updated on 2026-06-16.
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=611187
- http://lists.fedoraproject.org/pipermail/package-announce/2011-February/054071.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-February/054083.html
- http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
- http://openwall.com/lists/oss-security/2011/01/28/3
- http://openwall.com/lists/oss-security/2011/01/31/7
- http://secunia.com/advisories/43353
- http://secunia.com/advisories/43610
- http://security.gentoo.org/glsa/glsa-201206-35.xml
- http://www.debian.org/security/2011/dsa-2183
- http://www.securityfocus.com/bid/46572
- http://www.vupen.com/english/advisories/2011/0403
- http://www.vupen.com/english/advisories/2011/0582
- https://bugzilla.redhat.com/show_bug.cgi?id=673562
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65720
- https://github.com/yoe/nbd/commit/3ef52043861ab16352d49af89e048ba6339d6df8
- https://hermes.opensuse.org/messages/8086846
Affected products (20)
- cpe:2.3:a:wouter_verhelst:nbd:*:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.0:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.1:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.2:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.3:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.4:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.5:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.6:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.7:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.8:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.9:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.10:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.11:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.12:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.13:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.14:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.15:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.16:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.17:*:*:*:*:*:*:*
- cpe:2.3:a:wouter_verhelst:nbd:2.9.18:*:*:*:*:*:*:*
More vulnerabilities in Wouter Verhelst Nbd
- CVE-2015-0847 — High (CVSS 7.8): nbd-server.c in Network Block Device (nbd-server) before 3.11 does not properly handle signals, which allows remote…
- CVE-2013-7441 — High (CVSS 7.8): The modern style negotiation in Network Block Device (nbd-server) 2.9.22 through 3.3 allows remote attackers to cause a…
- CVE-2013-6410 — High (CVSS 7.5): nbd-server in Network Block Device (nbd) before 3.5 does not properly check IP addresses, which might allow remote…
- CVE-2005-3534 — High (CVSS 7.5): Buffer overflow in the Network Block Device (nbd) server 2.7.5 and earlier, and 2.8.0 through 2.8.2, allows remote…
- CVE-2011-1925 — Medium (CVSS 5.0): nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL…
All CVEs affecting Wouter Verhelst Nbd →
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