Wouter Verhelst nbd up to 2.9.19 nbd-server.c mainloop memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Wouter Verhelst nbd and classified as critical. This issue affects the function mainloop of the file nbd-server.c. Performing a manipulation results in memory corruption. This vulnerability is reported as CVE-2011-0530. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Wouter Verhelst nbd. This affects the function mainloop of the file nbd-server.c. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was disclosed 02/22/2011 (Website). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2011-0530 since 01/20/2011. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 75678 (openSUSE Security Update : nbd (nbd-4031)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165187 (SUSE Security Update for Multiple Packages (SUSE-SR:2011:005)).

Upgrading to version 2.9.11 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (65720), Tenable (75678), SecurityFocus (BID 46572†), Secunia (SA43353†) and Vulnerability Center (SBV-30020†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 75678
Nessus Name: openSUSE Security Update : nbd (nbd-4031)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 69118
OpenVAS Name: Debian Security Advisory DSA 2183-1 (nbd)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: nbd 2.9.11
Patch: github.com

Timelineinfo

01/20/2011 🔍
02/16/2011 +27 days 🔍
02/22/2011 +6 days 🔍
02/22/2011 +0 days 🔍
02/22/2011 +0 days 🔍
02/25/2011 +3 days 🔍
03/02/2011 +5 days 🔍
06/13/2014 +1199 days 🔍
03/20/2015 +280 days 🔍
01/26/2025 +3600 days 🔍

Sourcesinfo

Advisory: dsa-2183
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-0530 (🔍)
GCVE (CVE): GCVE-0-2011-0530
GCVE (VulDB): GCVE-100-56577

OVAL: 🔍

X-Force: 65720
SecurityFocus: 46572 - Network Block Device Server (CVE-2011-0530) Remote Buffer Overflow Vulnerability
Secunia: 43353 - Fedora update for nbd, Moderately Critical
Vulnerability Center: 30020 - Network Block Device Before 2.9.20 Remote Arbitrary Code Execution Vulnerability via a Long Request, High
Vupen: ADV-2011-0403

Entryinfo

Created: 03/20/2015 16:16
Updated: 01/26/2025 01:56
Changes: 03/20/2015 16:16 (62), 03/17/2017 07:32 (15), 10/17/2021 17:00 (4), 10/17/2021 17:07 (1), 10/17/2021 17:15 (1), 01/26/2025 01:56 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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