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.
| Software | From | Fixed in |
|---|---|---|
| xen / xen | - | 4.11.1.x |
| citrix / xenserver | 7.0 | 7.0.x |
| citrix / xenserver | 7.5 | 7.5.x |
| citrix / xenserver | 7.6 | 7.6.x |
| citrix / xenserver | 7.1-cu1 | 7.1-cu1.x |
| debian / debian_linux | 9.0 | 9.0.x |
- 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@lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/
- https://support.citrix.com/article/CTX239432
- https://www.debian.org/security/2019/dsa-4369
- https://xenbits.xen.org/xsa/advisory-279.html
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