Description
An issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- https://support.citrix.com/article/CTX239432 ↗
- https://www.debian.org/security/2019/dsa-4369 ↗
- http://www.securityfocus.com/bid/106182 ↗
- https://xenbits.xen.org/xsa/advisory-275.html ↗
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UXC6BME7SXJI2ZIATNXCAH7RGPI4UKTT/ ↗
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00072.html ↗
- https://lists.debian.org/debian-lts-announce/2019/10/msg00008.html ↗