Executive Summary

Summary
Title nbd security update
Informations
Name DSA-3271 First vendor Publication 2015-05-23
Vendor Debian Last vendor Modification 2015-05-23
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Tuomas Räsänen discovered that unsafe signal handling in nbd-server, the server for the Network Block Device protocol, could allow remote attackers to cause a deadlock in the server process and thus a denial of service.

Tuomas Räsänen also discovered that the modern-style negotiation was carried out in the main server process before forking the actual client handler. This could allow a remote attacker to cause a denial of service (crash) by querying a non-existent export. This issue only affected the oldstable distribution (wheezy).

For the oldstable distribution (wheezy), these problems have been fixed in version 1:3.2-4~deb7u5.

For the stable distribution (jessie), these problems have been fixed in version 1:3.8-4+deb8u1.

For the testing distribution (stretch), these problems have been fixed in version 1:3.10-1.

For the unstable distribution (sid), these problems have been fixed in version 1:3.10-1.

We recommend that you upgrade your nbd packages.

Original Source

Url : http://www.debian.org/security/2015/dsa-3271

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-399 Resource Management Errors
50 % CWE-17 Code

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 38
Os 4

Nessus® Vulnerability Scanner

Date Description
2015-08-14 Name : The remote Fedora host is missing a security update.
File : fedora_2015-12703.nasl - Type : ACT_GATHER_INFO
2015-08-14 Name : The remote Fedora host is missing a security update.
File : fedora_2015-12719.nasl - Type : ACT_GATHER_INFO
2015-07-23 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2676-1.nasl - Type : ACT_GATHER_INFO
2015-06-04 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2015-393.nasl - Type : ACT_GATHER_INFO
2015-05-26 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3271.nasl - Type : ACT_GATHER_INFO
2015-05-18 Name : The remote Debian host is missing a security update.
File : debian_DLA-223.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2015-06-02 00:27:55
  • Multiple Updates
2015-06-01 21:29:32
  • Multiple Updates
2015-05-29 21:29:28
  • Multiple Updates
2015-05-27 13:26:59
  • Multiple Updates
2015-05-23 13:25:18
  • First insertion