Home/CVE/Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a de
CVE

CVE-2011-2901

Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a de

Off-by-one error in the __addr_ok macro in Xen 3.3 and earlier allows local 64 bit PV guest administrators to cause a denial of service (host crash) via unspecified hypercalls that ignore virtual-address bits.

MEDIUM · CVSS 5.5 EPSS 0.00119
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
▤

Affected Products & Versions

2
xen<= 3.3.0
xenall 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 NVD01 Oct 2013 · 05:55 PM
⚑

Vendor Advisories

2
rhsaRHSA-2011:1212Important
rhsaRHSA-2011:1813Important
🔗

References & Sources

5
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.html
http://secunia.com/advisories/55082
http://security.gentoo.org/glsa/glsa-201309-24.xml
http://www.openwall.com/lists/oss-security/2011/09/02/2
https://bugzilla.redhat.com/show_bug.cgi?id=728042
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