CVE-2018-19966

An issue was discovered in Xen through 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.

• CWE-436

• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
• http://www.securityfocus.com/bid/106182Third Party Advisory, VDB Entry
• 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://www.debian.org/security/2019/dsa-4369Third Party Advisory
• https://xenbits.xen.org/xsa/advisory-280.htmlMitigation, Patch, Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
• http://www.securityfocus.com/bid/106182Third Party Advisory, VDB Entry
• 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://www.debian.org/security/2019/dsa-4369Third Party Advisory
• https://xenbits.xen.org/xsa/advisory-280.htmlMitigation, Patch, Vendor Advisory

Published

Dec 8, 2018

Last Modified

Jun 17, 2026

Status

Modified

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