8.8

CVE-2022-33745

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.

Data is provided by the National Vulnerability Database (NVD)
Xen ≫ Xen HwPlatformx86
Debian ≫ Debian Linux Version11.0
Fedoraproject ≫ Fedora Version35
Fedoraproject ≫ Fedora Version36
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.05% 0.155
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 8.8 2 6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
http://www.openwall.com/lists/oss-security/2022/07/26/2
Patch
Third Party Advisory
Mailing List
http://www.openwall.com/lists/oss-security/2022/07/26/3
Patch
Third Party Advisory
Mailing List