An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 9b9a5f6e-1755-11ed-adef-589cfc01894a advisory.

  - AMD EPYC Processors contain an information disclosure vulnerability in the Secure Encrypted     Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with Secure Nested Paging     (SEV-SNP). A local authenticated attacker could potentially exploit this vulnerability leading to leaking     guest data by the malicious hypervisor. (CVE-2020-12966)

  - An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on     AMD CPUs by monitoring ciphertext values over time. (CVE-2021-46744)

  - wolfSSL before 5.4.0 allows remote attackers to cause a denial of service via DTLS because a check for     return-routability can be skipped. (CVE-2022-34293)

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1923-1 advisory.

  - Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead     an IO device to write to memory it should not be able to access, resulting in a potential loss of     integrity. (CVE-2021-26312, CVE-2021-26348)

  - A bug in AMD CPU's core logic may allow for an attacker, using specific code from an unprivileged VM, to     trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code     includes a specific x86 instruction sequence that would not be generated by compilers. (CVE-2021-26339)

  - In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular     sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure     to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of     SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability.
    (CVE-2021-26342)

  - Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to     introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of     service. (CVE-2021-26347)

  - Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being     tricked into trusting a dishonest Migration Agent (MA). (CVE-2021-26349)

  - A TOCTOU race condition in SMU may allow for the caller to obtain and manipulate the address of a message     port register which may result in a potential denial of service. (CVE-2021-26350)

  - Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read     outside of the SRAM address range which could result in an exception handling leading to a potential     denial of service. (CVE-2021-26364)

  - Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access to an     invalid address space that could result in denial of service. (CVE-2021-26372)

  - Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction     that could result in denial of resources and/or possibly denial of service. (CVE-2021-26373)

  - Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in     access/updates from/to invalid address space that could result in denial of service. (CVE-2021-26375)

  - Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features     potentially resulting in denial of resources and/or denial of service. (CVE-2021-26376)

  - Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address     space that could result in denial of service. (CVE-2021-26378)

  - Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy     in RAM, exposing out of bounds memory contents, resulting in a potential denial of service.
    (CVE-2021-26388)

  - Improper conditions check in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R)     products before version 22.100 may allow an authenticated user to potentially enable denial of service via     adjacent access. (CVE-2021-33139)

  - Improper input validation in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R)     products before version 22.100 may allow an authenticated user to potentially enable denial of service via     adjacent access. (CVE-2021-33155)

  - An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on     AMD CPUs by monitoring ciphertext values over time. (CVE-2021-46744)

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1847-1 advisory.

  - Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead     an IO device to write to memory it should not be able to access, resulting in a potential loss of     integrity. (CVE-2021-26312, CVE-2021-26348)

  - A bug in AMD CPU's core logic may allow for an attacker, using specific code from an unprivileged VM, to     trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code     includes a specific x86 instruction sequence that would not be generated by compilers. (CVE-2021-26339)

  - In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular     sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure     to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of     SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability.
    (CVE-2021-26342)

  - Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to     introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of     service. (CVE-2021-26347)

  - Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being     tricked into trusting a dishonest Migration Agent (MA). (CVE-2021-26349)

  - A TOCTOU race condition in SMU may allow for the caller to obtain and manipulate the address of a message     port register which may result in a potential denial of service. (CVE-2021-26350)

  - Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read     outside of the SRAM address range which could result in an exception handling leading to a potential     denial of service. (CVE-2021-26364)

  - Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access to an     invalid address space that could result in denial of service. (CVE-2021-26372)

  - Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction     that could result in denial of resources and/or possibly denial of service. (CVE-2021-26373)

  - Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in     access/updates from/to invalid address space that could result in denial of service. (CVE-2021-26375)

  - Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features     potentially resulting in denial of resources and/or denial of service. (CVE-2021-26376)

  - Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address     space that could result in denial of service. (CVE-2021-26378)

  - Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy     in RAM, exposing out of bounds memory contents, resulting in a potential denial of service.
    (CVE-2021-26388)

  - An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on     AMD CPUs by monitoring ciphertext values over time. (CVE-2021-46744)

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1840-1 advisory.

  - Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead     an IO device to write to memory it should not be able to access, resulting in a potential loss of     integrity. (CVE-2021-26312, CVE-2021-26348)

  - A bug in AMD CPU's core logic may allow for an attacker, using specific code from an unprivileged VM, to     trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code     includes a specific x86 instruction sequence that would not be generated by compilers. (CVE-2021-26339)

  - In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular     sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure     to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of     SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability.
    (CVE-2021-26342)

  - Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to     introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of     service. (CVE-2021-26347)

  - Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being     tricked into trusting a dishonest Migration Agent (MA). (CVE-2021-26349)

  - A TOCTOU race condition in SMU may allow for the caller to obtain and manipulate the address of a message     port register which may result in a potential denial of service. (CVE-2021-26350)

  - Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read     outside of the SRAM address range which could result in an exception handling leading to a potential     denial of service. (CVE-2021-26364)

  - Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access to an     invalid address space that could result in denial of service. (CVE-2021-26372)

  - Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction     that could result in denial of resources and/or possibly denial of service. (CVE-2021-26373)

  - Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in     access/updates from/to invalid address space that could result in denial of service. (CVE-2021-26375)

  - Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features     potentially resulting in denial of resources and/or denial of service. (CVE-2021-26376)

  - Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address     space that could result in denial of service. (CVE-2021-26378)

  - Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy     in RAM, exposing out of bounds memory contents, resulting in a potential denial of service.
    (CVE-2021-26388)

  - An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on     AMD CPUs by monitoring ciphertext values over time. (CVE-2021-46744)

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

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1846-1 advisory.

  - Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead     an IO device to write to memory it should not be able to access, resulting in a potential loss of     integrity. (CVE-2021-26312, CVE-2021-26348)

  - A bug in AMD CPU's core logic may allow for an attacker, using specific code from an unprivileged VM, to     trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code     includes a specific x86 instruction sequence that would not be generated by compilers. (CVE-2021-26339)

  - In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular     sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure     to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of     SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability.
    (CVE-2021-26342)

  - Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to     introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of     service. (CVE-2021-26347)

  - Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being     tricked into trusting a dishonest Migration Agent (MA). (CVE-2021-26349)

  - A TOCTOU race condition in SMU may allow for the caller to obtain and manipulate the address of a message     port register which may result in a potential denial of service. (CVE-2021-26350)

  - Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read     outside of the SRAM address range which could result in an exception handling leading to a potential     denial of service. (CVE-2021-26364)

  - Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access to an     invalid address space that could result in denial of service. (CVE-2021-26372)

  - Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction     that could result in denial of resources and/or possibly denial of service. (CVE-2021-26373)

  - Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in     access/updates from/to invalid address space that could result in denial of service. (CVE-2021-26375)

  - Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features     potentially resulting in denial of resources and/or denial of service. (CVE-2021-26376)

  - Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address     space that could result in denial of service. (CVE-2021-26378)

  - Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy     in RAM, exposing out of bounds memory contents, resulting in a potential denial of service.
    (CVE-2021-26388)

  - An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on     AMD CPUs by monitoring ciphertext values over time. (CVE-2021-46744)

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1751-1 advisory.

  - Improper input validation in firmware for some Intel(R) PROSet/Wireless WiFi in UEFI may allow an     unauthenticated user to potentially enable escalation of privilege via adjacent access. (CVE-2021-0071)

  - Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead     an IO device to write to memory it should not be able to access, resulting in a potential loss of     integrity. (CVE-2021-26312, CVE-2021-26348)

  - A bug in AMD CPU's core logic may allow for an attacker, using specific code from an unprivileged VM, to     trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code     includes a specific x86 instruction sequence that would not be generated by compilers. (CVE-2021-26339)

  - In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular     sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure     to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of     SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability.
    (CVE-2021-26342)

  - Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to     introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of     service. (CVE-2021-26347)

  - Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being     tricked into trusting a dishonest Migration Agent (MA). (CVE-2021-26349)

  - A TOCTOU race condition in SMU may allow for the caller to obtain and manipulate the address of a message     port register which may result in a potential denial of service. (CVE-2021-26350)

  - Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read     outside of the SRAM address range which could result in an exception handling leading to a potential     denial of service. (CVE-2021-26364)

  - Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access to an     invalid address space that could result in denial of service. (CVE-2021-26372)

  - Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction     that could result in denial of resources and/or possibly denial of service. (CVE-2021-26373)

  - Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in     access/updates from/to invalid address space that could result in denial of service. (CVE-2021-26375)

  - Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features     potentially resulting in denial of resources and/or denial of service. (CVE-2021-26376)

  - Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address     space that could result in denial of service. (CVE-2021-26378)

  - Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy     in RAM, exposing out of bounds memory contents, resulting in a potential denial of service.
    (CVE-2021-26388)

  - Improper conditions check in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R)     products before version 22.100 may allow an authenticated user to potentially enable denial of service via     adjacent access. (CVE-2021-33139)

  - Improper input validation in firmware for some Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R)     products before version 22.100 may allow an authenticated user to potentially enable denial of service via     adjacent access. (CVE-2021-33155)

  - An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on     AMD CPUs by monitoring ciphertext values over time. (CVE-2021-46744)

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
163920	FreeBSD : wolfssl -- multiple issues (9b9a5f6e-1755-11ed-adef-589cfc01894a)	Nessus	FreeBSD Local Security Checks	medium
161824	SUSE SLED15 / SLES15 Security Update : kernel-firmware (SUSE-SU-2022:1923-1)	Nessus	SuSE Local Security Checks	medium
161568	SUSE SLES15 Security Update : kernel-firmware (SUSE-SU-2022:1847-1)	Nessus	SuSE Local Security Checks	medium
161538	SUSE SLED15 / SLES15 Security Update : kernel-firmware (SUSE-SU-2022:1840-1)	Nessus	SuSE Local Security Checks	medium
161519	SUSE SLES12 Security Update : kernel-firmware (SUSE-SU-2022:1846-1)	Nessus	SuSE Local Security Checks	medium
161400	SUSE SLES15 Security Update : kernel-firmware (SUSE-SU-2022:1751-1)	Nessus	SuSE Local Security Checks	high

Detections

Analytics

CVE-2021-46744

medium

Tenable Plugins

medium

medium

medium

medium

medium

high