CVE-2017-17563

An 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.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.9 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

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

Exploitability : 1.1 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.9^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://xenbits.xen.org/xsa/advisory-249.html	Mitigation Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/12/12/2	Mailing List
http://www.securityfocus.com/bid/102169
https://security.gentoo.org/glsa/201801-14
https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html
https://www.debian.org/security/2018/dsa-4112
https://support.citrix.com/article/CTX232096
http://www.securitytracker.com/id/1040769
https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html

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Configurations

Configuration 1 (hide)

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

Information

Published : 2017-12-12 15:29

Updated : 2018-10-19 03:29

NVD link : CVE-2017-17563

Mitre link : CVE-2017-17563

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

xen

xen

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