CVE-2014-1895

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Summary

CVECVE-2014-1895
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-04-01 06:35:53 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionOff-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read.

Risk And Classification

Primary CVSS: v2.0 5.8 from [email protected]

AV:A/AC:M/Au:S/C:P/I:N/A:C

Problem Types: CWE-189 | n/a

CVSS v2.0 Breakdown

Access Vector
Adjacent
Access Complexity
Medium
Authentication
Single
Confidentiality
Partial
Integrity
None
Availability
Complete

AV:A/AC:M/Au:S/C:P/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Xen Xen 4.2.0 All All All
Operating System Xen Xen 4.2.1 All All All
Operating System Xen Xen 4.2.2 All All All
Operating System Xen Xen 4.2.3 All All All
Operating System Xen Xen 4.3.0 All All All
Operating System Xen Xen 4.3.1 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
oss-security - Xen Security Advisory 85 (CVE-2014-1895) - Off-by-one error in FLASK_AVC_CACHESTAT hypercall af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
oss-security - Re: Xen Security Advisory 84 - integer overflow in several XSM/Flask hypercalls af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
[security-announce] SUSE-SU-2014:0373-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
Gentoo Linux Documentation -- Xen: Multiple Vunlerabilities af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
XSA-85 - Xen Security Advisories af854a3a-2127-422b-91ae-364da2661108 xenbits.xen.org Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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