CVE-2014-3517

Name: CVE-2014-3517
Creator: NVD / NIST
Published: 2014-08-07T11:13:34.967+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.94%

Last modified Jun 17, 2026

CVE-2014-3517 is a vulnerability of currently unknown severity. 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 that relies on timing differences in responses to instance metadata requests.. EPSS estimates a 1.94% chance of exploitation in the next 30 days.

Description

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 that relies on timing differences in responses to instance metadata requests.

Metrics

EPSS Probability

1.94%

77.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions	Update
Openstack	Nova	>= 2013.2, <= 2013.2.4	—
Openstack	Nova	>= 2014.1, < 2014.1.2	—
Openstack	Nova	2014.2.0	Milestone1

References

http://www.openwall.com/lists/oss-security/2014/07/17/2Patch, Third Party Advisory
https://bugs.launchpad.net/nova/+bug/1325128Third Party Advisory
http://www.openwall.com/lists/oss-security/2014/07/17/2Patch, Third Party Advisory
https://bugs.launchpad.net/nova/+bug/1325128Third Party Advisory

Timeline

Published: Aug 7, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-3517?

How severe is CVE-2014-3517?

Severity scoring for CVE-2014-3517 is pending analysis. The EPSS model estimates a 1.94% probability of exploitation in the next 30 days.

How do I fix CVE-2014-3517?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-3517?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST