CVE-2016-7154 Information

Description

Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.

CVSS Vector

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

Reference

http://support.citrix.com/article/CTX216071 http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf http://www.debian.org/security/2016/dsa-3663 http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html http://www.securityfocus.com/bid/92863 http://www.securitytracker.com/id/1036754 http://xenbits.xen.org/xsa/advisory-188.html http://xenbits.xen.org/xsa/xsa188.patch

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.7