CVE-2018-19962
HIGHXen < 4.11.1 - Exposure of Sensitive Information via IOMMU Mapping Combination
Title source: llmDescription
An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because small IOMMU mappings are unsafely combined into larger ones.
References (7)
Core 7
Core References
Third Party Advisory x_refsource_confirm
https://support.citrix.com/article/CTX239432
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2019/dsa-4369
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/106182
Patch, Vendor Advisory x_refsource_misc
https://xenbits.xen.org/xsa/advisory-275.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
Mailing List mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html
Scores
CVSS v3
7.8
EPSS
0.0018
EPSS Percentile
39.3%
Attack Vector
LOCAL
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Details
CWE
CWE-200
Status
published
Products (6)
citrix/xenserver
7.0
citrix/xenserver
7.1 cu1
citrix/xenserver
7.5
citrix/xenserver
7.6
debian/debian_linux
9.0
xen/xen
< 4.11.1
Published
Dec 08, 2018
Tracked Since
Feb 18, 2026