Executive Summary

Summary
Title OpenStack Nova vulnerabilities
Informations
Name USN-1771-1 First vendor Publication 2013-03-20
Vendor Ubuntu Last vendor Modification 2013-03-20
Severity (Vendor) N/A Revision N/A

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:M/Au:S/C:P/I:P/A:P)
Cvss Base Score 6 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 6.8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.10 - Ubuntu 12.04 LTS - Ubuntu 11.10

Summary:

Two security issues were fixed in Nova.

Software Description: - nova: OpenStack Compute cloud infrastructure

Details:

Loganathan Parthipan discovered that Nova did not properly validate VNC tokens after an instance was deleted. An authenticated attacker could exploit this to access other virtual machines under certain circumstances. This issue did not affect Ubuntu 11.10. (CVE-2013-0335)

Vish Ishaya discovered that Nova did not always enforce quotas on fixed IPs. An authenticated attacker could exploit this to cause a denial of service via resource consumption. Nova will now enforce a quota limit of 10 fixed IPs per instance, which is configurable via 'quota_fixed_ips' in /etc/nova/nova.conf. (CVE-2013-1838)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.10:
python-nova 2012.2.1+stable-20121212-a99a802e-0ubuntu1.4

Ubuntu 12.04 LTS:
python-nova 2012.1.3+stable-20120827-4d2a4afe-0ubuntu1.4

Ubuntu 11.10:
python-nova 2011.3-0ubuntu6.13

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1771-1
CVE-2013-0335, CVE-2013-1838

Package Information:

https://launchpad.net/ubuntu/+source/nova/2012.2.1+stable-20121212-a99a802e-0ubuntu1.4

https://launchpad.net/ubuntu/+source/nova/2012.1.3+stable-20120827-4d2a4afe-0ubuntu1.4
https://launchpad.net/ubuntu/+source/nova/2011.3-0ubuntu6.13

Original Source

Url : http://www.ubuntu.com/usn/USN-1771-1

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-399 Resource Management Errors
50 % CWE-264 Permissions, Privileges, and Access Controls

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:18279
 
Oval ID: oval:org.mitre.oval:def:18279
Title: USN-1771-1 -- nova vulnerabilities
Description: Two security issues were fixed in Nova.
Family: unix Class: patch
Reference(s): USN-1771-1
CVE-2013-0335
CVE-2013-1838
Version: 7
Platform(s): Ubuntu 12.10
Ubuntu 12.04
Ubuntu 11.10
Product(s): nova
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1
Application 1
Os 3

Nessus® Vulnerability Scanner

Date Description
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2013-237.nasl - Type : ACT_GATHER_INFO
2013-03-21 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-1771-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2014-02-17 12:01:43
  • Multiple Updates
2013-03-25 17:19:29
  • Multiple Updates
2013-03-23 13:19:26
  • Multiple Updates
2013-03-21 00:17:53
  • First insertion