Published: 08/12/2018 Updated: 07/11/2023

CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9

CVSS v3 Base Score: 8.8 | Impact Score: 6 | Exploitability Score: 2

VMScore: 641

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

An issue exists in Xen up to and including 4.11.x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging. NOTE: this issue exists because of an incorrect fix for CVE-2017-15595.

Vulnerable Product	Search on Vulmon	Subscribe to Product
xen xen
debian debian linux 9.0

An issue was discovered in Xen through 411x allowing x86 PV guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because of an interpretation conflict for a union data structure associated with shadow paging NOTE: this issue exists because of an incorrect fix for CVE-2017-15595 ...

CWE-436 https://xenbits.xen.org/xsa/advisory-280.html http://www.securityfocus.com/bid/106182 https://www.debian.org/security/2019/dsa-4369 http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/https://nvd.nist.gov https://access.redhat.com/security/cve/cve-2018-19966

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CVE-2018-19966

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