OpenStack Compute (Nova) Folsom, Grizzly, and Havana does not properly verify the virtual size of a QCOW2 image, which allows local users to cause a denial of service (host file system disk consumption) via a compressed QCOW2 image. NOTE: this issue is due to an incomplete fix for CVE-2013-2096.
CVE-2013-4463
- No confirmed exploitation signals yet
A fix is available — apply it.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 28.8%
- KEV
- Not listed
Published
February 6, 2014
Last Modified
April 29, 2026
References (8)
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2014-0112.html
- secalert@redhathttp://www.openwall.com/lists/oss-security/2013/10/31/3
- secalert@redhathttp://www.ubuntu.com/usn/USN-2247-1
- secalert@redhathttps://bugs.launchpad.net/nova/+bug/1206081
- af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2014-0112.html
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2013/10/31/3
- af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2247-1
- af854a3a-2127-422b-91ae-364da2661108https://bugs.launchpad.net/nova/+bug/1206081
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python-nova (1:2014.1-0ubuntu1.2) @ trusty | 2026-05-28 | ubuntu |
| redhat | openstack-nova-0:2013.1.4-4.el6ost | 2014-01-30 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| nova | — | 12.0.0a0 | — |
All Vendor Advisories
(2)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 9× in last 7d / 41× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 13:41 UTCEPSS rescore
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- 2026-07-05 02:55 UTCOSV refresh
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- 2026-06-18 17:49 UTCEPSS rescore
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- 2026-06-16 14:39 UTCOSV refresh
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
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- 2026-05-28 20:29 UTCEG score recompute
- 2026-05-28 20:29 UTCVendor advisory
- 2026-05-28 13:42 UTCEPSS rescore
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- 2026-05-28 13:42 UTCEPSS rescore
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- 2026-05-26 07:16 UTCEPSS rescore
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- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 12:57 UTCOSV refresh
- 2026-05-21 22:39 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
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Frequently asked(4)
What is CVE-2013-4463?
When was CVE-2013-4463 disclosed?
Is CVE-2013-4463 actively exploited?
How do I remediate CVE-2013-4463?
Dependency Blast Radius
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