Improper input validation in some Intel(R) TDX module software before version 1.5.05.46.698 may allow a privileged user to potentially enable escalation of privilege via local access.

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0564 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2023-47855:
    Improper input validation in some Intel(R) TDX module software before version 1.5.05.46.698 may allow a     privileged user to potentially enable escalation of privilege via local access.

    CVE-2023-45745:
    Improper input validation in some Intel(R) TDX module software before version 1.5.05.46.698 may allow a     privileged user to potentially enable escalation of privilege via local access.

    CVE-2023-46103:
    Sequence of processor instructions leads to unexpected behavior in Intel(R) Core(TM) Ultra Processors may     allow an authenticated user to potentially enable denial of service via local access.

    CVE-2023-45733:
    Hardware logic contains race conditions in some Intel(R) Processors may allow an authenticated user to     potentially enable partial information disclosure via local access.

    CVE-2023-38575:
    Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow     an authorized user to potentially enable information disclosure via local access.

    CVE-2023-39368:
    Protection mechanism failure of bus lock regulator for some Intel(R) Processors may allow an     unauthenticated user to potentially enable denial of service via network access.

    CVE-2023-28746:
    Information exposure through microarchitectural state after transient execution from some register files     for some Intel(R) Atom(R) Processors may allow an authenticated user to potentially enable information     disclosure via local access.

    CVE-2023-43490:
    Incorrect calculation in microcode keying mechanism for some Intel(R) Xeon(R) D Processors with Intel(R)     SGX may allow a privileged user to potentially enable information disclosure via local access.

    CVE-2023-22655:
    Protection mechanism failure in some 3rd and 4th Generation Intel(R) Xeon(R) Processors when using     Intel(R) SGX or Intel(R) TDX may allow a privileged user to potentially enable escalation of privilege via     local access.

Tenable has extracted the preceding description block directly from the Tencent 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Improper input validation in some Intel(R) TDX module software before version 1.5.05.46.698 may allow a     privileged user to potentially enable escalation of privilege via local access. (CVE-2023-47855)

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

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 23.10 / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6797-1 advisory.

    It was discovered that some 3rd and 4th Generation Intel Xeon Processors did not properly restrict     access to certain hardware features when using Intel SGX or Intel TDX. This may allow a privileged     local user to potentially further escalate their privileges on the system. This issue only affected Ubuntu     23.10, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS and Ubuntu 16.04 LTS. (CVE-2023-22655)

    It was discovered that some Intel Atom Processors did not properly clear register state when     performing various operations. A local attacker could use this to obtain sensitive information via a     transient execution attack. This issue only affected Ubuntu 23.10, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS,     Ubuntu 18.04 LTS and Ubuntu 16.04 LTS. (CVE-2023-28746)

    It was discovered that some Intel Processors did not properly clear the state of various hardware     structures when switching execution contexts. A local attacker could use this to access privileged     information. This issue only affected Ubuntu 23.10, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS     and Ubuntu 16.04 LTS. (CVE-2023-38575)

    It was discovered that some Intel Processors did not properly enforce bus lock regulator protections. A     remote attacker could use this to cause a denial of service. This issue only affected Ubuntu 23.10, Ubuntu     22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS and Ubuntu 16.04 LTS. (CVE-2023-39368)

    It was discovered that some Intel Xeon D Processors did not properly calculate the SGX base key when     using Intel SGX. A privileged local attacker could use this to obtain sensitive information. This issue     only affected Ubuntu 23.10, Ubuntu 22.04 LTS, Ubuntu 20.04 LTS, Ubuntu 18.04 LTS and Ubuntu 16.04 LTS.
    (CVE-2023-43490)

    It was discovered that some Intel Processors did not properly protect against concurrent accesses. A     local attacker could use this to obtain sensitive information. (CVE-2023-45733)

    It was discovered that some Intel Processors TDX module software did not properly validate input. A     privileged local attacker could use this information to potentially further escalate their privileges on     the system. (CVE-2023-45745, CVE-2023-47855)

    It was discovered that some Intel Core Ultra processors did not properly handle particular     instruction sequences. A local attacker could use this issue to cause a denial of service.
    (CVE-2023-46103)

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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1771-1 advisory.

    Intel CPU Microcode was updated to the 20240514 release (bsc#1224277)

    - CVE-2023-45733: Fixed a potential security vulnerability in some       Intel? Processors that may have allowed information disclosure.
    - CVE-2023-46103: Fixed a potential security vulnerability in Intel?       Core Ultra Processors that may have allowed denial of service.
    - CVE-2023-45745,CVE-2023-47855: Fixed a potential security       vulnerabilities in some Intel? Trust Domain Extensions (TDX) module       software that may have allowed escalation of privilege.

Tenable has extracted the preceding description block directly from the SUSE 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 SLES12 / SLES_SAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1684-1 advisory.

  - Hardware logic contains race conditions in some Intel(R) Processors may allow an authenticated user to     potentially enable partial information disclosure via local access. (CVE-2023-45733)

  - Improper input validation in some Intel(R) TDX module software before version 1.5.05.46.698 may allow a     privileged user to potentially enable escalation of privilege via local access. (CVE-2023-45745,     CVE-2023-47855)

  - Sequence of processor instructions leads to unexpected behavior in Intel(R) Core(TM) Ultra Processors may     allow an authenticated user to potentially enable denial of service via local access. (CVE-2023-46103)

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
276080	TencentOS Server 4: microcode_ctl (TSSA-2024:0564)	Nessus	Tencent Local Security Checks	high
259594	Linux Distros Unpatched Vulnerability : CVE-2023-47855	Nessus	Misc.	medium
198069	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 23.10 / 24.04 LTS : Intel Microcode vulnerabilities (USN-6797-1)	Nessus	Ubuntu Local Security Checks	high
197920	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : ucode-intel (SUSE-SU-2024:1771-1)	Nessus	SuSE Local Security Checks	high
197548	SUSE SLES12 Security Update : ucode-intel (SUSE-SU-2024:1684-1)	Nessus	SuSE Local Security Checks	high

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