A flaw was found in the libtpms code that may cause access beyond the boundary of internal buffers. The vulnerability is triggered by specially-crafted TPM2 command packets that then trigger the issue when the state of the TPM2's volatile state is written. The highest threat from this vulnerability is to system availability. This issue affects libtpms versions before 0.8.5, before 0.7.9 and before 0.6.6.

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2022:0274 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

      CVE-2021-3746:
      A flaw was found in the libtpms code that may cause access beyond the boundary of internal buffers. The     vulnerability is triggered by specially-crafted TPM2 command packets that then trigger the issue when the     state of the TPM2's volatile state is written. The highest threat from this vulnerability is to system     availability. This issue affects libtpms versions before 0.8.5, before 0.7.9 and before 0.6.6.

      CVE-2021-3623:
      A flaw was found in libtpms. The flaw can be triggered by specially-crafted TPM 2 command packets     containing illegal values and may lead to an out-of-bounds access when the volatile state of the TPM 2 is     marshalled/written or unmarshalled/read. The highest threat from this vulnerability is to system     availability.

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.

  - A flaw was found in the libtpms code that may cause access beyond the boundary of internal buffers. The     vulnerability is triggered by specially-crafted TPM2 command packets that then trigger the issue when the     state of the TPM2's volatile state is written. The highest threat from this vulnerability is to system     availability. This issue affects libtpms versions before 0.8.5, before 0.7.9 and before 0.6.6.
    (CVE-2021-3746)

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

The remote CentOS Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the libtpms-0.9.1-2.20211126git1ff6fe1f43.el9 build changelog.

  - out-of-bounds access when trying to resume the state of the vTPM (CVE-2021-3623)

  - out-of-bounds access via specially crafted TPM 2 command packets (CVE-2021-3746)

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 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2021:3004-1 advisory.

  - A flaw was found in the libtpms code that may cause access beyond the boundary of internal buffers. The     vulnerability is triggered by specially-crafted TPM2 command packets that then trigger the issue when the     state of the TPM2's volatile state is written. The highest threat from this vulnerability is to system     availability. This issue affects libtpms versions before 0.8.5, before 0.7.9 and before 0.6.6.
    (CVE-2021-3746)

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 SUSE15 host has packages installed that are affected by a vulnerability as referenced in the openSUSE-SU-2021:3004-1 advisory.

  - A flaw was found in the libtpms code that may cause access beyond the boundary of internal buffers. The     vulnerability is triggered by specially-crafted TPM2 command packets that then trigger the issue when the     state of the TPM2's volatile state is written. The highest threat from this vulnerability is to system     availability. This issue affects libtpms versions before 0.8.5, before 0.7.9 and before 0.6.6.
    (CVE-2021-3746)

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

ID	Name	Product	Family	Severity
239862	TencentOS Server 3: libtpms (TSSA-2022:0274)	Nessus	Tencent Local Security Checks	medium
224036	Linux Distros Unpatched Vulnerability : CVE-2021-3746	Nessus	Misc.	medium
191313	CentOS 9 : libtpms-0.9.1-2.20211126git1ff6fe1f43.el9	Nessus	CentOS Local Security Checks	medium
153194	SUSE SLES15 Security Update : libtpms (SUSE-SU-2021:3004-1)	Nessus	SuSE Local Security Checks	medium
153187	openSUSE 15 Security Update : libtpms (openSUSE-SU-2021:3004-1)	Nessus	SuSE Local Security Checks	medium

Detections

Analytics

CVE-2021-3746

medium

Tenable Plugins

medium

medium

medium

medium

medium