CVE-2024-35801
Description
In the Linux kernel, the following vulnerability has been resolved:
x86/fpu: Keep xfd_state in sync with MSR_IA32_XFD
The Linux kernel CVE team has assigned CVE-2024-35801 to this issue.
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024051738-CVE-2024-35801-8038@gregkh/T
Statement
Red Hat has evaluated this vulnerability as having a Low severity impact because triggering the condition requires CPU hotplug operations on hardware platforms supporting extended feature disable (XFD). Unprivileged local users cannot perform CPU hotplug actions, requiring privileged access or specific hypervisor-level interventions to initiate the event that leads to kernel instability. As a result, the risk of unprivileged denial-of-service in typical enterprise environments remains minimal.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.5 | 5.5 | 7.8 |
| Attack Vector | Local | Local | Local |
| Attack Complexity | Low | Low | Low |
| Privileges Required | Low | Low | Low |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | None | None | High |
| Integrity Impact | None | None | High |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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