CVE-2015-8550

HIGH

Xen - Denial of Service and Privilege Escalation via Double Fetch in PV Backend Memory

Title source: llm
STIX 2.1

Description

Xen, when used on a system providing PV backends, allows local guest OS administrators to cause a denial of service (host OS crash) or gain privileges by writing to memory shared between the frontend and backend, aka a double fetch vulnerability.

References (11)

Core 11
Core References
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2016/dsa-3519
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/79592
Vendor Advisory x_refsource_confirm
http://xenbits.xen.org/xsa/advisory-155.html
Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1034479
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201604-03
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2016/dsa-3471
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2016/dsa-3434

Scores

CVSS v3 8.2
EPSS 0.1596
EPSS Percentile 94.9%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Details

CWE
CWE-284
Status published
Products (2)
novell/suse_linux_enterprise_real_time_extension 12 sp1
xen/xen
Published Apr 14, 2016
Tracked Since Feb 18, 2026