medium
6
CWE
755
Advisory Published
CVE Published
Updated

CVE-2023-5090: Kernel: kvm: svm: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs

First published: Mon Nov 06 2023(Updated: )

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.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux Linux kernel<=6.5
Linux Linux kernel=6.6-rc1
Linux Linux kernel=6.6-rc2
Linux Linux kernel=6.6-rc3
Linux Linux kernel=6.6-rc4
Linux Linux kernel=6.6-rc5
Linux Linux kernel=6.6-rc6
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux=9.0
redhat/kernel<6.6
6.6
ubuntu/linux<6.2.0-37.38
6.2.0-37.38
ubuntu/linux<6.5.0-13.13
6.5.0-13.13
ubuntu/linux<6.6~
6.6~
ubuntu/linux-aws<6.2.0-1016.16
6.2.0-1016.16
ubuntu/linux-aws<6.5.0-1010.10
6.5.0-1010.10
ubuntu/linux-aws<6.6~
6.6~
ubuntu/linux-aws-5.15<6.6~
6.6~
ubuntu/linux-aws-5.4<6.6~
6.6~
ubuntu/linux-aws-6.2<6.2.0-1016.16~22.04.1
6.2.0-1016.16~22.04.1
ubuntu/linux-aws-6.2<6.6~
6.6~
ubuntu/linux-aws-6.5<6.6~
6.6~
ubuntu/linux-aws-fips<6.6~
6.6~
ubuntu/linux-aws-hwe<6.6~
6.6~
ubuntu/linux-azure<6.2.0-1017.17
6.2.0-1017.17
ubuntu/linux-azure<6.5.0-1009.9
6.5.0-1009.9
ubuntu/linux-azure<6.6~
6.6~
ubuntu/linux-azure-4.15<6.6~
6.6~
ubuntu/linux-azure-5.15<6.6~
6.6~
ubuntu/linux-azure-5.4<6.6~
6.6~
ubuntu/linux-azure-6.2<6.2.0-1017.17~22.04.1
6.2.0-1017.17~22.04.1
ubuntu/linux-azure-6.2<6.6~
6.6~
ubuntu/linux-azure-6.5<6.6~
6.6~
ubuntu/linux-azure-fde<6.6~
6.6~
ubuntu/linux-azure-fde-5.15<6.6~
6.6~
ubuntu/linux-azure-fde-6.2<6.2.0-1017.17~22.04.1.1
6.2.0-1017.17~22.04.1.1
ubuntu/linux-azure-fde-6.2<6.6~
6.6~
ubuntu/linux-azure-fips<6.6~
6.6~
ubuntu/linux-bluefield<6.6~
6.6~
ubuntu/linux-fips<6.6~
6.6~
ubuntu/linux-gcp<6.2.0-1019.21
6.2.0-1019.21
ubuntu/linux-gcp<6.6~
6.6~
ubuntu/linux-gcp-4.15<6.6~
6.6~
ubuntu/linux-gcp-5.15<6.6~
6.6~
ubuntu/linux-gcp-5.19<6.6~
6.6~
ubuntu/linux-gcp-5.4<6.6~
6.6~
ubuntu/linux-gcp-6.2<6.2.0-1019.21~22.04.1
6.2.0-1019.21~22.04.1
ubuntu/linux-gcp-6.5<6.6~
6.6~
ubuntu/linux-gcp-fips<6.6~
6.6~
ubuntu/linux-gke<6.6~
6.6~
ubuntu/linux-gkeop<6.6~
6.6~
ubuntu/linux-gkeop-5.15<6.6~
6.6~
ubuntu/linux-hwe<6.6~
6.6~
ubuntu/linux-hwe-5.15<6.6~
6.6~
ubuntu/linux-hwe-5.4<6.6~
6.6~
ubuntu/linux-hwe-6.2<6.2.0-37.38~22.04.1
6.2.0-37.38~22.04.1
ubuntu/linux-hwe-6.2<6.6~
6.6~
ubuntu/linux-hwe-6.5<6.6~
6.6~
ubuntu/linux-ibm<6.6~
6.6~
ubuntu/linux-ibm-5.15<6.6~
6.6~
ubuntu/linux-ibm-5.4<6.6~
6.6~
ubuntu/linux-intel<6.6~
6.6~
ubuntu/linux-intel-iot-realtime<6.6~
6.6~
ubuntu/linux-intel-iotg<6.6~
6.6~
ubuntu/linux-intel-iotg-5.15<6.6~
6.6~
ubuntu/linux-iot<6.6~
6.6~
ubuntu/linux-kvm<6.2.0-1017.17
6.2.0-1017.17
ubuntu/linux-kvm<6.6~
6.6~
ubuntu/linux-laptop<6.5.0-1006.9
6.5.0-1006.9
ubuntu/linux-laptop<6.6~
6.6~
ubuntu/linux-lowlatency<6.2.0-1017.17
6.2.0-1017.17
ubuntu/linux-lowlatency<6.5.0-13.13.1
6.5.0-13.13.1
ubuntu/linux-lowlatency<6.6~
6.6~
ubuntu/linux-lowlatency-hwe-5.15<6.6~
6.6~
ubuntu/linux-lowlatency-hwe-6.2<6.2.0-1017.17~22.04.1
6.2.0-1017.17~22.04.1
ubuntu/linux-lowlatency-hwe-6.2<6.6~
6.6~
ubuntu/linux-lowlatency-hwe-6.5<6.6~
6.6~
ubuntu/linux-lowlatency-hwe-6.8<6.6~
6.6~
ubuntu/linux-lts-xenial<6.6~
6.6~
ubuntu/linux-nvidia<6.6~
6.6~
ubuntu/linux-nvidia-6.2<6.2.0-1012.12
6.2.0-1012.12
ubuntu/linux-nvidia-6.2<6.6~
6.6~
ubuntu/linux-nvidia-6.5<6.5.0-1007.7
6.5.0-1007.7
ubuntu/linux-nvidia-6.5<6.6~
6.6~
ubuntu/linux-nvidia-6.8<6.6~
6.6~
ubuntu/linux-nvidia-lowlatency<6.6~
6.6~
ubuntu/linux-oem-6.1<6.1.0-1026.26
6.1.0-1026.26
ubuntu/linux-oem-6.1<6.6~
6.6~
ubuntu/linux-oem-6.5<6.5.0-1008.8
6.5.0-1008.8
ubuntu/linux-oem-6.5<6.6~
6.6~
ubuntu/linux-oem-6.8<6.6~
6.6~
ubuntu/linux-oracle<6.2.0-1016.17
6.2.0-1016.17
ubuntu/linux-oracle<6.5.0-1012.12
6.5.0-1012.12
ubuntu/linux-oracle<6.6~
6.6~
ubuntu/linux-oracle-5.15<6.6~
6.6~
ubuntu/linux-oracle-5.4<6.6~
6.6~
ubuntu/linux-oracle-6.5<6.6~
6.6~
ubuntu/linux-raspi<6.2.0-1017.19
6.2.0-1017.19
ubuntu/linux-raspi<6.5.0-1007.9
6.5.0-1007.9
ubuntu/linux-raspi<6.6~
6.6~
ubuntu/linux-raspi-5.4<6.6~
6.6~
ubuntu/linux-raspi-realtime<6.6~
6.6~
ubuntu/linux-realtime<6.6~
6.6~
ubuntu/linux-riscv<6.2.0-37.38.1
6.2.0-37.38.1
ubuntu/linux-riscv<6.5.0-13.13.1
6.5.0-13.13.1
ubuntu/linux-riscv<6.6~
6.6~
ubuntu/linux-riscv-5.15<6.6~
6.6~
ubuntu/linux-riscv-6.5<6.6~
6.6~
ubuntu/linux-riscv-6.8<6.6~
6.6~
ubuntu/linux-starfive<6.2.0-1009.10
6.2.0-1009.10
ubuntu/linux-starfive<6.5.0-1004.5
6.5.0-1004.5
ubuntu/linux-starfive<6.6~
6.6~
ubuntu/linux-starfive-6.2<6.2.0-1009.10~22.04.1
6.2.0-1009.10~22.04.1
ubuntu/linux-starfive-6.2<6.6~
6.6~
ubuntu/linux-starfive-6.5<6.6~
6.6~
ubuntu/linux-xilinx-zynqmp<6.6~
6.6~
debian/linux
5.10.223-1
6.1.106-3
6.1.99-1
6.10.6-1
6.10.7-1

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=2248122

Remedy

https://git.kernel.org/linus/4d1d7942e36add0aa741a62d0c8e3aba2d5b3ab1

Remedy

https://git.kernel.org/linus/b65235f6e102354ccafda601eaa1c5bef5284d21

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-5090?

    CVE-2023-5090 is a vulnerability in KVM that allows direct access to host x2apic msrs, potentially leading to a denial of service condition.

  • What is the severity of CVE-2023-5090?

    The severity of CVE-2023-5090 is medium with a severity value of 6.

  • How does CVE-2023-5090 affect the kernel?

    CVE-2023-5090 affects the kernel by allowing improper access to host x2apic msrs, which could lead to a denial of service.

  • How can I fix CVE-2023-5090?

    To fix CVE-2023-5090, update the affected kernel to version 6.6 or higher.

  • Where can I find more information about CVE-2023-5090?

    You can find more information about CVE-2023-5090 at the following references: [Reference 1](https://access.redhat.com/security/cve/CVE-2023-5090), [Reference 2](https://bugzilla.redhat.com/show_bug.cgi?id=2248122), [Reference 3](https://lore.kernel.org/kvm/20230928173354.217464-1-mlevitsk@redhat.com/T)

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