CVE-2023-5090

Kernel: kvm: svm: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs

MEDIUM

5.5

CVSS Score

Published: November 6, 2023 at 10:56 AM UTC

Updated: August 6, 2026 at 10:16 PM UTC

2 products affected across 2 vendorsLinux KernelEnterprise Linux

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

A flaw was found in KVM. An improper check in svm_set_x2apic_msr_interception() may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v ≤ 6.56.6 rc1 6.6 rc2 6.6 rc3 6.6 rc4 6.6 rc5 6.6 rc6

Enterprise Linux · Red Hatrpm

95%

8.0 9.0

Vendor states this is fixed in 0:4.18.0-553.8.1.el8_10 (unaffected)

Vendor states this is fixed in 0:4.18.0-553.8.1.rt7.349.el8_10 (unaffected)

Vendor states this is fixed in 0:5.14.0-284.69.1.el9_2 (unaffected)

Vendor states this is fixed in 0:5.14.0-284.69.1.rt14.354.el9_2 (unaffected)

Vendor states this is fixed in 0:5.14.0-427.16.1.el9_4 (unaffected)

Vendor states this is fixed in 6 (unaffected)

Vendor states this is fixed in 7 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references