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OpenAdvisories
Unscored USN-2325-1 1 CVE

nova vulnerability

Published Aug 21, 2014 · Updated Feb 10, 2026

Ecosystem: Ubuntu

Summary

Alex Gaynor discovered that OpenStack Nova would sometimes respond with
variable times when comparing authentication tokens. If nova were
configured to proxy metadata requests via Neutron, a remote authenticated
attacker could exploit this to conduct timing attacks and ascertain
configuration details of another instance.

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 14.04 LTS 14.04:LTS nova 1:2014.1.2-0ubuntu1.1

Vulnerabilities 1

  • Medium —
    CVE-2014-3517

    OpenStack Compute (Nova) Exposure of Sensitive Information to an Unauthorized Actor vulnerability

    api/metadata/handler.py in OpenStack Compute (Nova) before 2013.2.4, 2014.x before 2014.1.2, and Juno before Juno-2, when proxying metadata requests through Neutron, makes it easier for remote attackers to guess instance ID signatures via a brute-force attack…

    nova nova nova Debian Ubuntu PyPI

References

  • report
    https://ubuntu.com/security/CVE-2014-3517