CVE-2015-7972

Xen 3.4.x-4.6.x - Denial of Service via Balloon Size Miscalculations

Title source: llm
STIX 2.1

Description

The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to "heavy memory pressure."

References (10)

Core 10
Core References
Vendor Advisory x_refsource_confirm
http://support.citrix.com/article/CTX202404
Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html
Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-153.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/77365
Mailing List vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2015/dsa-3414
Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.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/1034036

Scores

EPSS 0.0007
EPSS Percentile 21.9%

Details

CWE
CWE-399
Status published
Products (30)
xen/xen 3.4.0
xen/xen 3.4.1
xen/xen 3.4.2
xen/xen 3.4.3
xen/xen 3.4.4
xen/xen 4.0.0
xen/xen 4.0.1
xen/xen 4.0.2
xen/xen 4.0.3
xen/xen 4.0.4
... and 20 more
Published Oct 30, 2015
Tracked Since Feb 18, 2026