CVE-2015-4163

Xen 4.2-4.5 - Denial of Service via GNTTABOP_swap_grant_ref Hypercall

Title source: llm
STIX 2.1

Description

GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.

References (10)

Core 10
Core References
Vendor Advisory x_refsource_confirm
https://support.citrix.com/article/CTX206006
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2015/dsa-3286
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/75141
Vendor Advisory x_refsource_confirm
http://support.citrix.com/article/CTX201145
Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-134.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201604-03
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1032568

Scores

EPSS 0.0012
EPSS Percentile 30.6%

Details

Status published
Products (10)
xen/xen 4.2.0
xen/xen 4.2.1
xen/xen 4.2.2
xen/xen 4.2.3
xen/xen 4.3.0
xen/xen 4.3.1
xen/xen 4.3.4
xen/xen 4.4.0 (2 CPE variants)
xen/xen 4.4.1
xen/xen 4.5.0
Published Jun 15, 2015
Tracked Since Feb 18, 2026