CVE-2016-7094

MEDIUM

Xen < 4.7.0 - Memory Corruption

Title source: rule

Description

Buffer overflow in Xen 4.7.x and earlier allows local x86 HVM guest OS administrators on guests running with shadow paging to cause a denial of service via a pagetable update.

References (8)

[Third Party Advisory] http://support.citrix.com/article/CTX216071

[Vendor Advisory] http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/92864

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1036753

[Patch, Vendor Advisory] http://xenbits.xen.org/xsa/advisory-187.html

[Patch, Vendor Advisory] http://xenbits.xen.org/xsa/xsa187-0001-x86-shadow-Avoid-overflowing-sh_ctxt-seg_reg.patch

[Third Party Advisory] http://www.debian.org/security/2016/dsa-3663

[Third Party Advisory] https://security.gentoo.org/glsa/201611-09

Scores

CVSS v3 4.1

EPSS 0.0007

EPSS Percentile 21.2%

Attack Vector LOCAL

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

Classification

CWE

CWE-119

Status published

Affected Products (2)

xen/xen < 4.7.0

n/a/n/a

Timeline

Published Sep 21, 2016

Tracked Since Feb 18, 2026