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TI-2011-00457 Aliases CVE-2011-0530GHSA-8p8p-8qmp-rfr2

Buffer overflow in the mainloop function in nbd-server.c in the server in Network Block…

Priority MEDIUM 41CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.05278 92nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 20

CPEVersionsRoleVendor
cpe:2.3:a:wouter_verhelst:nbd:*:*:*:*:*:*:*:*up to 2.9.19VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.0:*:*:*:*:*:*:*2.9.0VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.1:*:*:*:*:*:*:*2.9.1VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.2:*:*:*:*:*:*:*2.9.2VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.3:*:*:*:*:*:*:*2.9.3VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.4:*:*:*:*:*:*:*2.9.4VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.5:*:*:*:*:*:*:*2.9.5VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.6:*:*:*:*:*:*:*2.9.6VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.7:*:*:*:*:*:*:*2.9.7VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.8:*:*:*:*:*:*:*2.9.8VulnerableWouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:*:*:*:*:*:*:*:* Versions up to 2.9.19 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.0:*:*:*:*:*:*:* Versions 2.9.0 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.1:*:*:*:*:*:*:* Versions 2.9.1 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.2:*:*:*:*:*:*:* Versions 2.9.2 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.3:*:*:*:*:*:*:* Versions 2.9.3 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.4:*:*:*:*:*:*:* Versions 2.9.4 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.5:*:*:*:*:*:*:* Versions 2.9.5 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.6:*:*:*:*:*:*:* Versions 2.9.6 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.7:*:*:*:*:*:*:* Versions 2.9.7 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.8:*:*:*:*:*:*:* Versions 2.9.8 Vulnerable ·Wouter Verhelst
Show 10 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:wouter_verhelst:nbd:2.9.9:*:*:*:*:*:*:*2.9.9VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.10:*:*:*:*:*:*:*2.9.10VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.11:*:*:*:*:*:*:*2.9.11VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.12:*:*:*:*:*:*:*2.9.12VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.13:*:*:*:*:*:*:*2.9.13VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.14:*:*:*:*:*:*:*2.9.14VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.15:*:*:*:*:*:*:*2.9.15VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.16:*:*:*:*:*:*:*2.9.16VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.17:*:*:*:*:*:*:*2.9.17VulnerableWouter Verhelst
cpe:2.3:a:wouter_verhelst:nbd:2.9.18:*:*:*:*:*:*:*2.9.18VulnerableWouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.9:*:*:*:*:*:*:* Versions 2.9.9 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.10:*:*:*:*:*:*:* Versions 2.9.10 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.11:*:*:*:*:*:*:* Versions 2.9.11 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.12:*:*:*:*:*:*:* Versions 2.9.12 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.13:*:*:*:*:*:*:* Versions 2.9.13 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.14:*:*:*:*:*:*:* Versions 2.9.14 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.15:*:*:*:*:*:*:* Versions 2.9.15 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.16:*:*:*:*:*:*:* Versions 2.9.16 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.17:*:*:*:*:*:*:* Versions 2.9.17 Vulnerable ·Wouter Verhelst
  • cpe:2.3:a:wouter_verhelst:nbd:2.9.18:*:*:*:*:*:*:* Versions 2.9.18 Vulnerable ·Wouter Verhelst

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-0530
  2. 2026-10-03 Alias added: GHSA-8p8p-8qmp-rfr2

References

Patch 6

Advisory 5

Other 2

  • TI-2005-03357 Buffer overflow in the Network Block Device (nbd) server 2.7.5 and earlier, and 2.8.0… CVSS 2.0HIGH 7.5
  • TI-2015-00788 nbd-server.c in Network Block Device (nbd-server) before 3.11 does not properly handle… CVSS 2.0HIGH 7.8
  • TI-2013-06093 The modern style negotiation in Network Block Device (nbd-server) 2.9.22 through 3.3… CVSS 2.0HIGH 7.8
  • TI-2013-05364 nbd-server in Network Block Device (nbd) before 3.5 does not properly check IP addresses… CVSS 2.0HIGH 7.5
  • TI-2011-01697 nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause… CVSS 2.0MEDIUM 5.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences