CVE-2022-49933
"KVM VMX eVMCS Controls Reset Vulnerability"
Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
INFO
Published Date :
May 2, 2025, 4:15 p.m.
Last Modified :
May 20, 2025, 2:15 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-49933 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49933 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 20, 2025
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 20, 2025
Action Type Old Value New Value Changed Description In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Reset eVMCS controls in VP assist page during hardware disabling Reset the eVMCS controls in the per-CPU VP assist page during hardware disabling instead of waiting until kvm-intel's module exit. The controls are activated if and only if KVM creates a VM, i.e. don't need to be reset if hardware is never enabled. Doing the reset during hardware disabling will naturally fix a potential NULL pointer deref bug once KVM disables CPU hotplug while enabling and disabling hardware (which is necessary to fix a variety of bugs). If the kernel is running as the root partition, the VP assist page is unmapped during CPU hot unplug, and so KVM's clearing of the eVMCS controls needs to occur with CPU hot(un)plug disabled, otherwise KVM could attempt to write to a CPU's VP assist page after it's unmapped. Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. Removed Reference kernel.org: https://git.kernel.org/stable/c/01aa8e5704bac9fcd7401eb1a74a375fba594203 Removed Reference kernel.org: https://git.kernel.org/stable/c/2916b70fc342719f570640de07251b7f91feebdb Removed Reference kernel.org: https://git.kernel.org/stable/c/afb26bfc01db6ef4728e96314f08431934ffe833 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 02, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Reset eVMCS controls in VP assist page during hardware disabling Reset the eVMCS controls in the per-CPU VP assist page during hardware disabling instead of waiting until kvm-intel's module exit. The controls are activated if and only if KVM creates a VM, i.e. don't need to be reset if hardware is never enabled. Doing the reset during hardware disabling will naturally fix a potential NULL pointer deref bug once KVM disables CPU hotplug while enabling and disabling hardware (which is necessary to fix a variety of bugs). If the kernel is running as the root partition, the VP assist page is unmapped during CPU hot unplug, and so KVM's clearing of the eVMCS controls needs to occur with CPU hot(un)plug disabled, otherwise KVM could attempt to write to a CPU's VP assist page after it's unmapped. Added Reference https://git.kernel.org/stable/c/01aa8e5704bac9fcd7401eb1a74a375fba594203 Added Reference https://git.kernel.org/stable/c/2916b70fc342719f570640de07251b7f91feebdb Added Reference https://git.kernel.org/stable/c/afb26bfc01db6ef4728e96314f08431934ffe833
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49933 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49933
weaknesses.