| ID |
CVE-2022-33745
|
| Summary |
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. |
| References |
|
| Vulnerable Configurations |
-
cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*
cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:*
-
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
-
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
-
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
|
| CVSS |
| Base: | None |
| Impact: | |
| Exploitability: | |
|
| CWE |
NVD-CWE-noinfo |
| CAPEC |
|
| Access |
| Vector | Complexity | Authentication |
|
|
|
|
| Impact |
| Confidentiality | Integrity | Availability |
|
|
|
|
| Last major update |
12-12-2022 - 20:45 |
| Published |
26-07-2022 - 13:15 |
| Last modified |
12-12-2022 - 20:45 |
