exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Ubuntu Security Notice USN-1771-1

Ubuntu Security Notice USN-1771-1
Posted Mar 21, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1771-1 - 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. 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. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2013-0335, CVE-2013-1838, CVE-2013-0335, CVE-2013-1838
SHA-256 | fa145558c86a02448ee9a16b2027725b5e54bc17d094a144c43a0f6f2e65abe9

Ubuntu Security Notice USN-1771-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1771-1
March 20, 2013

nova vulnerabilities
============================================================================

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
Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    32 Files
  • 5
    Mar 5th
    28 Files
  • 6
    Mar 6th
    42 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    13 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    15 Files
  • 12
    Mar 12th
    19 Files
  • 13
    Mar 13th
    21 Files
  • 14
    Mar 14th
    38 Files
  • 15
    Mar 15th
    15 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    10 Files
  • 19
    Mar 19th
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 Files
  • 28
    Mar 28th
    0 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close