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High

OpenStack Nova Live migration can leak root disk into ephemeral storage

  • Disclosed: 06.02.2014
  • Updated: 11.10.2026 12:18

The i_create_images_and_backing (aka create_images_and_backing) method in libvirt driver in OpenStack Compute (Nova) Grizzly, Havana, and Icehouse, when using KVM live block migration, does not properly create all expected files, which allows attackers to obtain snapshot root disk contents of other users via ephemeral storage.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) nova < 12.0.0a0 12.0.0a0

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-200
Platform
Python (PyPI)
Package
nova
Disclosed
06.02.2014
Updated
11.10.2026 12:18

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2014-111 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-99rx-9x8v-9j8p - CC BY 4.0

Vulnerability history: nova

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (49) in the archive
Total entries
49
First → latest
08.2012 06.2026
Without a fix
5
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 11
  • Medium 29
  • Low 8

Disclosures per year

earlier: 7

Severity:
  1. OpenStack Nova calls qemu-img without format restrictions for resize
    High · 8.2 CVE-2026-24708 >= 32.0.0.0rc1, <= 32.1.0, >= 31.0.0.0rc1, <= 31.2.0, <= 30.2.1 no fix
  2. OpenStack Cinder, Glance, and Nova contain Uncontrolled Resource Consumption
    High · 7.5 CVE-2015-5162 < 12.0.4 12.0.4
  3. OpenStack Nova logs sensitive context from notification exceptions
    Critical · 9.8 CVE-2017-7214 >= 13.0.0, < 13.1.4, >= 14.0.0, < 14.0.5, >= 15.0.1, < 15.0.2 13.1.4, 14.0.5, 15.0.2
  4. OpenStack Nova Denial of service attack on the compute host
    High · 7.5 CVE-2017-18191 >= 15.0.0, < 15.1.1, >= 16.0.0, < 16.1.2 15.1.1, 16.1.2
  5. OpenStack Nova DoS by rebuilding the same instance with a new image multiple times
    High · 8.6 CVE-2017-17051 < 16.0.4 16.0.4
  6. An issue was discovered in Guest.migrate in virt/libvirt/guest.py in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0. By performing a soft reboot of an instance that has previously underg
    High · 8.3 CVE-2020-17376 < 19.3.1, >= 20.0.0, < 20.3.1, >= 21.0.0, < 21.1.0 19.3.1, 20.3.1, 21.1.0
  7. An issue was discovered in OpenStack Nova before 17.0.12, 18.x before 18.2.2, and 19.x before 19.0.2. If an API request from an authenticated user ends in a fault condition due to an external exceptio
    High · 6.5 CVE-2019-14433 >= 19.0.0, < 19.0.2, < 17.0.12, >= 18.0.0, < 18.2.2 19.0.2, 17.0.12, 18.2.2
  8. OpenStack Nova VMWare driver leaks rescued images
    High · 6.5 CVE-2014-2573 < 12.0.0a0 12.0.0a0
  9. OpenStack Nova Live migration can leak root disk into ephemeral storage this entry
    High · 7.5 CVE-2013-7130 < 12.0.0a0 12.0.0a0
  10. OpenStack Compute Nova Unauthorised access to arbitrary VM using VNC token from deleted VM
    High · 6.5 CVE-2013-0335 < 12.0.0a0 12.0.0a0
  11. OpenStack Compute (Nova) Denial of service via a large number of calls to the addFixedIp function
    High · 6.5 CVE-2013-1838 < 12.0.0a0 12.0.0a0
  12. virt/disk/api.py in OpenStack Compute (Nova) 2012.1.x before 2012.1.2 and Folsom before Folsom-3 allows remote authenticated users to overwrite arbitrary files via a symlink attack on a file in an ima
    High · 6.5 CVE-2012-3447 all versions no fix

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