CVEvulnerability
CVE-2018-19965
5.6 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2018-12-08
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 5.6 MEDIUM — CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.7 MEDIUM — AV:L/AC:M/Au:N/C:N/I:N/A:C
Description
An issue was discovered in Xen through 4.11.x allowing 64-bit PV guest OS users to cause a denial of service (host OS crash) because #GP[0] can occur after a non-canonical address is passed to the TLB flushing code. NOTE: this issue exists because of an incorrect CVE-2017-5754 (aka Meltdown) mitigation.
Affected configurations
• xen xen (<= 4.11.1)
• citrix xenserver 7.0
• citrix xenserver 7.1
• citrix xenserver 7.5
• citrix xenserver 7.6
• debian debian linux 9.0
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html lists.opensuse.org
- http://www.securityfocus.com/bid/106182 Third Party Advisory, VDB Entry
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ lists.fedoraproject.org
- https://support.citrix.com/article/CTX239432 Patch, Third Party Advisory
- https://www.debian.org/security/2019/dsa-4369 Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-279.html Mitigation, Patch, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html lists.opensuse.org
- http://www.securityfocus.com/bid/106182 Third Party Advisory, VDB Entry
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ lists.fedoraproject.org
- https://support.citrix.com/article/CTX239432 Patch, Third Party Advisory
- https://www.debian.org/security/2019/dsa-4369 Third Party Advisory
- https://xenbits.xen.org/xsa/advisory-279.html Mitigation, Patch, Vendor Advisory