Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to cause a denial of service (invalid pointer dereference and hypervisor crash) via the SAHF instruction.
CVE-2011-2519
- No confirmed exploitation signals yet
A fix is available — apply it.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 47.8%
- KEV
- Not listed
Published
December 27, 2013
Last Modified
April 29, 2026
References (8)
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2011-1212.html
- secalert@redhathttp://www.openwall.com/lists/oss-security/2011/08/30/1
- secalert@redhathttp://xenbits.xen.org/hg/xen-3.1-testing.hg/rev/15644
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=718882
- af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2011-1212.html
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2011/08/30/1
- af854a3a-2127-422b-91ae-364da2661108http://xenbits.xen.org/hg/xen-3.1-testing.hg/rev/15644
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=718882
Vendor Advisories for CVE-2011-2519(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | kernel-0:2.6.18-238.31.1.el5 | 2011-12-13 | redhat |
| redhat | kernel-0:2.6.18-274.3.1.el5 | 2011-09-06 | 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.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 10× in last 7d / 44× 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.
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Frequently asked(4)
What is CVE-2011-2519?
When was CVE-2011-2519 disclosed?
Is CVE-2011-2519 actively exploited?
How do I remediate CVE-2011-2519?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2011-2519
Is Your Infrastructure Affected by CVE-2011-2519?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.