Citrix: >> Xenserver >> 7.5 Security Vulnerabilities
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.
CVSS Score
7.8
EPSS Score
0.001
Published
2018-12-08
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 small IOMMU mappings are unsafely combined into larger ones.
CVSS Score
7.8
EPSS Score
0.001
Published
2018-12-08
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.
CVSS Score
5.6
EPSS Score
0.001
Published
2018-12-08
Citrix XenServer 7.1 and newer allows Directory Traversal.
CVSS Score
9.8
EPSS Score
0.047
Published
2018-08-15
System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially allow a local process to infer data from another process through a speculative execution side channel.
CVSS Score
5.6
EPSS Score
0.013
Published
2018-06-21