Debian Security Bug TrackerDEBIANCVE:CVE-2022-48793CVE-2022-48793
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
5.0%
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: nSVM: fix potential NULL derefernce on nested migration Turns out that due to review feedback and/or rebases I accidentally moved the call to nested_svm_load_cr3 to be too early, before the NPT is enabled, which is very wrong to do. KVM can’t even access guest memory at that point as nested NPT is needed for that, and of course it won’t initialize the walk_mmu, which is main issue the patch was addressing. Fix this for real.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | linux | < 5.16.11-1 | linux_5.16.11-1_all.deb |
| Debian | 11 | all | linux | < 5.10.223-1 | linux_5.10.223-1_all.deb |
| Debian | 999 | all | linux | < 5.16.11-1 | linux_5.16.11-1_all.deb |
| Debian | 13 | all | linux | < 5.16.11-1 | linux_5.16.11-1_all.deb |
Related
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
5.0%