Home/CVE/Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to ca
CVE

CVE-2011-2519

Xen in the Linux kernel, when running a guest on a host without hardware assisted paging (HAP), allows guest users to ca

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.

MEDIUM · CVSS 5.5 EPSS 0.00137
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

4
xen< 3.3.0
redhat enterprise linux desktopall versions
redhat enterprise linux serverall versions
redhat enterprise linux workstationall versions
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v2 (legacy) · secalert@redhat.com
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This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:A/AC:L/Au:S/C:N/I:N/A:C
Published to NVD27 Dec 2013 · 01:55 AM
⚑

Vendor Advisories

3
msrcCVE-2011-2519
rhsaRHSA-2011:1212Important
rhsaRHSA-2011:1813Important
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://rhn.redhat.com/errata/RHSA-2011-1212.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2011/08/30/1Mailing ListThird Party Advisory
http://xenbits.xen.org/hg/xen-3.1-testing.hg/rev/15644PatchVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=718882Issue TrackingThird Party Advisory
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