CVE-2017-17563

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Summary

CVECVE-2017-17563
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-12-12 23:29:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionAn issue was discovered in Xen through 4.9.x allowing guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode.

Risk And Classification

Primary CVSS: v3.0 7.8 HIGH from [email protected]

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Problem Types: CWE-119 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.8HIGHCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
2.0[email protected]Primary6.9AV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Xen Xen All All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
Xen Shadow Mode Reference Count Flaw Lets Local Guest Users Deny Service and Potentially Gain Elevated Privileges on the Host System - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
404 - Page not found af854a3a-2127-422b-91ae-364da2661108 support.citrix.com
XSA-249 - Xen Security Advisories af854a3a-2127-422b-91ae-364da2661108 xenbits.xen.org Mitigation, Patch, Vendor Advisory
Xen: Multiple vulnerabilities (GLSA 201801-14) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
Xen 'Hypervisor' Memory Corruption Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
[SECURITY] [DLA 1230-1] xen security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
Debian -- Security Information -- DSA-4112-1 xen af854a3a-2127-422b-91ae-364da2661108 www.debian.org
[SECURITY] [DLA 1549-1] xen security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
oss-security - Xen Security Advisory 249 - broken x86 shadow mode refcount overflow check af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 710266 Gentoo Linux Xen Multiple Vulnerabilities (GLSA 201801-14)
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