CVE-2022-33745

2022-07-2600:00:00

XEN

www.cve.org

8.8 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

14.4%

JSON

insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF (see XSA-273), PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / value between old and new code positions. The now wrong use of the variable did lead to a wrong TLB flush condition, omitting flushes where such are necessary.

CNA Affected

[
  {
    "vendor": "Xen",
    "product": "xen",
    "versions": [
      {
        "version": "consult Xen advisory XSA-408",
        "status": "unknown"
      }
    ]
  }
]