CVE-2018-19965

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.

Score

CVSS 3.0 5.6 Medium

Status

Modified - cve@mitre.org

Published

2018-12-08

Last modified

2024-08-05

Affected products

• Xenserver (Citrix)
• Debian Linux (Debian)
• Xen (Xen)

References

• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html
• http://www.securityfocus.com/bid/106182
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH…
• https://support.citrix.com/article/CTX239432
• https://www.debian.org/security/2019/dsa-4369
• https://xenbits.xen.org/xsa/advisory-279.html