CVE-2017-15597

An issue was discovered in Xen through 4.9.x. Grant copying code made an implication that any grant pin would be accompanied by a suitable page reference. Other portions of code, however, did not match up with that assumption. When such a grant copy operation is being done on a grant of a dying domain, the assumption turns out wrong. A malicious guest administrator can cause hypervisor memory corruption, most likely resulting in host crash and a Denial of Service. Privilege escalation and information leaks cannot be ruled out.

CVSS v3.0 9.1 CRITICAL
CVSS v2.0 9.0 HIGH

9.1^/10

CVSS v3.0 : CRITICAL

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

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

9.0^/10

CVSS v2.0 : HIGH

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

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://support.citrix.com/article/CTX229057	Issue Tracking Third Party Advisory
http://xenbits.xen.org/xsa/advisory-236.html	Issue Tracking Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2017/10/24/3	Issue Tracking Mailing List Mitigation Third Party Advisory
http://www.securitytracker.com/id/1039653	Issue Tracking Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/101564	Issue Tracking Third Party Advisory VDB Entry
https://www.debian.org/security/2017/dsa-4050
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:*:rc7:*:*:*:*:*:*

Information

Published : 2017-10-30 07:29

Updated : 2019-10-02 17:03

NVD link : CVE-2017-15597

Mitre link : CVE-2017-15597

JSON object : View

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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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