IOMMU improperly handles certain special address ranges with invalid device table entries (DTEs), which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity.

The remote Oracle Linux 7 / 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-12797 advisory.

    [20241003-999.35.git95bfe086.el8]
    - Rebase to latest upstream [Orabug: 37132142]
    - Fix build error in ol7 due to linking in copy-firmware.sh [Orabug: 37132515]
    - Bring back drirectory structure qcom/sc8280xp [Orabug: 37132142]

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:7481 advisory.

    * kernel: hw:amd:IOMMU improperly handles certain special address leading to a loss of guest integrity     (CVE-2023-20584)
    * kernel: hw: amd:Incomplete system memory cleanup in SEV firmware corrupt guest private memory     (CVE-2023-31356)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:7484 advisory.

    * kernel: hw:amd:IOMMU improperly handles certain special address leading to a loss of guest integrity     (CVE-2023-20584)
    * kernel: hw: amd:Incomplete system memory cleanup in SEV firmware corrupt guest private memory     (CVE-2023-31356)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:7484 advisory.

    The linux-firmware packages contain all of the firmware files that are required by various devices to     operate.

    Security Fix(es):

    * kernel: hw:amd:IOMMU improperly handles certain special address leading to a loss of guest integrity     (CVE-2023-20584)

    * kernel: hw: amd:Incomplete system memory cleanup in SEV firmware corrupt guest private memory     (CVE-2023-31356)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:7483 advisory.

    The linux-firmware packages contain all of the firmware files that are required by various devices to     operate.

    Security Fix(es):

    * kernel: hw:amd:IOMMU improperly handles certain special address leading to a loss of guest integrity     (CVE-2023-20584)

    * kernel: hw: amd:Incomplete system memory cleanup in SEV firmware corrupt guest private memory     (CVE-2023-31356)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:7481 advisory.

    The linux-firmware packages contain all of the firmware files that are required by various devices to     operate.

    Security Fix(es):

    * kernel: hw:amd:IOMMU improperly handles certain special address leading to a loss of guest integrity     (CVE-2023-20584)

    * kernel: hw: amd:Incomplete system memory cleanup in SEV firmware corrupt guest private memory     (CVE-2023-31356)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:7418 advisory.

    The linux-firmware packages contain all of the firmware files that are required by various devices to     operate.

    Security Fix(es):

    * kernel: hw:amd:IOMMU improperly handles certain special address leading to a loss of guest integrity     (CVE-2023-20584)

    * kernel: hw: amd:Incomplete system memory cleanup in SEV firmware corrupt guest private memory     (CVE-2023-31356)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
209539	Oracle Linux 7 / 8 / 9 : linux-firmware (ELSA-2024-12797)	Nessus	Oracle Linux Local Security Checks	medium
208200	AlmaLinux 8 : linux-firmware (ALSA-2024:7481)	Nessus	Alma Linux Local Security Checks	medium
208198	AlmaLinux 9 : linux-firmware (ALSA-2024:7484)	Nessus	Alma Linux Local Security Checks	medium
208016	RHEL 9 : linux-firmware (RHSA-2024:7484)	Nessus	Red Hat Local Security Checks	medium
208012	RHEL 9 : linux-firmware (RHSA-2024:7483)	Nessus	Red Hat Local Security Checks	medium
208011	RHEL 8 : linux-firmware (RHSA-2024:7481)	Nessus	Red Hat Local Security Checks	medium
207966	RHEL 8 : linux-firmware (RHSA-2024:7418)	Nessus	Red Hat Local Security Checks	medium

Detections

Analytics

CVE-2023-20584

medium

Tenable Plugins

medium

medium

medium

medium

medium

medium

medium