openstack-nova: timing attack issue allows access to other instances' configuration information
Published Aug 7, 2014
4.3
MEDIUMCVSS 2.0
EPSS 1.95%
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.
Affected products
No data.
No data.
OpenStack 4 for RHEL 6
openstack-nova-0:2013.2.3-12.el6ost
Fixed · RHSA-2014:1084
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7
openstack-nova-0:2014.1.1-4.el7ost
Fixed · RHSA-2014:0940
Red Hat OpenStack Platform 3
openstack-nova
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| OpenStack 4 for RHEL 6 | openstack-nova-0:2013.2.3-12.el6ost | Fixed | RHSA-2014:1084 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 | openstack-nova-0:2014.1.1-4.el7ost | Fixed | RHSA-2014:0940 |
| Red Hat OpenStack Platform 3 | openstack-nova | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.95% (0.01954) | 79.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.94% (0.01938) | 77.39th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.40% (0.00398) | 58.50th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.31% (0.00308) | 70.80th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.31% (0.00308) | 69.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.31% (0.00308) | 65.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.05% (0.01055) | 51.58th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.11% (0.01108) | 54.42th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (9)
- http://www.openwall.com/lists/oss-security/2014/07/17/2 mailing-listx_refsource_MLISTPatchThird Party Advisory
- https://access.redhat.com/errata/RHSA-2014:0940
- https://access.redhat.com/errata/RHSA-2014:1084
- https://access.redhat.com/security/cve/CVE-2014-3517 Vendor Advisory
- https://bugs.launchpad.net/nova/+bug/1325128 x_refsource_CONFIRMThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1112499 Issue Tracking
- https://github.com/advisories/GHSA-xjmj-p278-4jp5 Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2014-3517
- https://www.cve.org/CVERecord?id=CVE-2014-3517
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2014/07/17/2 | mailing-listx_refsource_MLISTPatchThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2014:0940 | ||
| https://access.redhat.com/errata/RHSA-2014:1084 | ||
| https://access.redhat.com/security/cve/CVE-2014-3517 | Vendor Advisory | |
| https://bugs.launchpad.net/nova/+bug/1325128 | x_refsource_CONFIRMThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1112499 | Issue Tracking | |
| https://github.com/advisories/GHSA-xjmj-p278-4jp5 | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-3517 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-3517 |
Change history (0)
No recorded changes yet.