Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote host is affected by the vulnerability described in GLSA-202402-22 (intel-microcode: Multiple Vulnerabilities)

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

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

The remote Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5535-1 advisory.

    Joseph Nuzman discovered that some Intel processors did not properly initialise shared resources. A local     attacker could use this to obtain sensitive information. (CVE-2021-0145)

    Mark Ermolov, Dmitry Sklyarov and Maxim Goryachy discovered that some Intel processors did not prevent     test and debug logic from being activated at runtime. A local attacker could use this to escalate     privileges. (CVE-2021-0146)

    It was discovered that some Intel processors did not implement sufficient control flow management. A local     attacker could use this to cause a denial of service (system crash). (CVE-2021-0127)

    It was discovered that some Intel processors did not completely perform cleanup actions on multi-core     shared buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21123,     CVE-2022-21127)

    It was discovered that some Intel processors did not completely perform cleanup actions on     microarchitectural fill buffers. A local attacker could possibly use this to expose sensitive information.
    (CVE-2022-21125)

    Alysa Milburn, Jason Brandt, Avishai Redelman and Nir Lavi discovered that some Intel processors     improperly optimised security-critical code. A local attacker could possibly use this to expose sensitive     information. (CVE-2022-21151)

    It was discovered that some Intel processors did not properly perform cleanup during specific special     register write operations. A local attacker could possibly use this to expose sensitive information.
    (CVE-2022-21166)

    It was discovered that some Intel processors did not properly restrict access in some situations. A local     attacker could use this to obtain sensitive information. (CVE-2021-33117)

    Brandon Miller discovered that some Intel processors did not properly restrict access in some situations.
    A local attacker could use this to obtain sensitive information or a remote attacker could use this to     cause a denial of service (system crash). (CVE-2021-33120)

Tenable has extracted the preceding description block directly from the Ubuntu 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 Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5486-1 advisory.

    It was discovered that some Intel processors did not implement sufficient control flow management. A local     attacker could use this to cause a denial of service. (CVE-2021-0127)

    Joseph Nuzman discovered that some Intel processors did not properly initialise shared resources. A local     attacker could use this to obtain sensitive information. (CVE-2021-0145)

    Mark Ermolov, Dmitry Sklyarov and Maxim Goryachy discovered that some Intel processors did not prevent     test and debug logic from being activated at runtime. A local attacker could use this to escalate     privileges. (CVE-2021-0146)

    It was discovered that some Intel processors did not properly restrict access in some situations. A local     attacker could use this to obtain sensitive information. (CVE-2021-33117)

    Brandon Miller discovered that some Intel processors did not properly restrict access in some situations.
    A local attacker could use this to obtain sensitive information or a remote attacker could use this to     cause a denial of service. (CVE-2021-33120)

    It was discovered that some Intel processors did not completely perform cleanup actions on multi-core     shared buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21123,     CVE-2022-21127)

    Alysa Milburn, Jason Brandt, Avishai Redelman and Nir Lavi discovered that some Intel processors     improperly optimised security-critical code. A local attacker could possibly use this to expose sensitive     information. (CVE-2022-21151)

    It was discovered that some Intel processors did not properly perform cleanup during specific special     register write operations. A local attacker could possibly use this to expose sensitive information.
    (CVE-2022-21166)

Tenable has extracted the preceding description block directly from the Ubuntu 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 version of microcode_ctl installed on the remote host is prior to 2.1-47. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2022-1762 advisory.

    2024-05-09: CVE-2021-33117 was added to this advisory.

    A flaw was found in microcode. Under complex microarchitectural conditions, an unexpected code breakpoint     may cause a system hang. The hang was observed on a Skylake server processor, and subsequent analysis     indicated additional potentially affected processors. This flaw allows a possible temporary denial of     service (TDOS) to occur. (CVE-2021-0127)

    Hardware allows activation of test and debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

    Improper access control for some 3rd Generation Intel(R) Xeon(R) Scalable Processors before BIOS version     MR7, may allow a local attacker to potentially enable information disclosure via local access.
    (CVE-2021-33117)

Tenable has extracted the preceding description block directly from the tested product 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 SUSE Linux SUSE15 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2022:0574-1 advisory.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

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

The remote SUSE Linux SLES12 / SLES_SAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0576-1 advisory.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

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 a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0574-1 advisory.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

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 a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0575-1 advisory.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

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 a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0541-1 advisory.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

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 a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:0502-1 advisory.

  - Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to     potentially enable a denial of service via local access. (CVE-2021-0127)

  - Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2021-0145)

  - Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow     an unauthenticated user to potentially enable escalation of privilege via physical access. (CVE-2021-0146)

  - Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R)     Processors may allow authenticated user to potentially enable information disclosure or cause denial of     service via network access. (CVE-2021-33120)

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
223588	Linux Distros Unpatched Vulnerability : CVE-2021-0146	Nessus	Misc.	medium
190764	GLSA-202402-22 : intel-microcode: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	medium
163520	Ubuntu 16.04 ESM : Intel Microcode vulnerabilities (USN-5535-1)	Nessus	Ubuntu Local Security Checks	medium
162404	Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : Intel Microcode vulnerabilities (USN-5486-1)	Nessus	Ubuntu Local Security Checks	medium
158724	Amazon Linux 2 : microcode_ctl (ALAS-2022-1762)	Nessus	Amazon Linux Local Security Checks	medium
158449	openSUSE 15 Security Update : ucode-intel (openSUSE-SU-2022:0574-1)	Nessus	SuSE Local Security Checks	medium
158447	SUSE SLES12 Security Update : ucode-intel (SUSE-SU-2022:0576-1)	Nessus	SuSE Local Security Checks	medium
158446	SUSE SLED15 / SLES15 Security Update : ucode-intel (SUSE-SU-2022:0574-1)	Nessus	SuSE Local Security Checks	medium
158445	SUSE SLES12 Security Update : ucode-intel (SUSE-SU-2022:0575-1)	Nessus	SuSE Local Security Checks	medium
158242	SUSE SLES15 Security Update : ucode-intel (SUSE-SU-2022:0541-1)	Nessus	SuSE Local Security Checks	medium
158180	SUSE SLES15 Security Update : ucode-intel (SUSE-SU-2022:0502-1)	Nessus	SuSE Local Security Checks	medium

Detections

Analytics

CVE-2021-0146

medium

Tenable Plugins

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