Vulnerability-Lookup

alsa-2023:7166

Vulnerability from osv_almalinux

Published

2023-11-14 00:00

Modified

2023-11-23 10:20

Summary

Low: tpm2-tss security and enhancement update

Details

The tpm2-tss packages provide the Intel implementation of the Trusted Platform Module (TPM) 2.0 System API library. This library enables programs to interact with TPM 2.0 devices

Security Fix(es):

tpm2-tss: Buffer Overlow in TSS2_RC_Decode (CVE-2023-22745)

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.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2023:7166	ADVISORY
	https://access.redhat.com/security/cve/CVE-2023-22745	REPORT
	https://bugzilla.redhat.com/2162610	REPORT
	https://errata.almalinux.org/8/ALSA-2023-7166.html	ADVISORY

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "tpm2-tss"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.2-5.el8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "tpm2-tss-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.2-5.el8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The tpm2-tss packages provide the Intel implementation of the Trusted Platform Module (TPM) 2.0 System API library. This library enables programs to interact with TPM 2.0 devices\n\nSecurity Fix(es):\n\n* tpm2-tss: Buffer Overlow in TSS2_RC_Decode (CVE-2023-22745)\n\nFor 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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.",
  "id": "ALSA-2023:7166",
  "modified": "2023-11-23T10:20:32Z",
  "published": "2023-11-14T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2023:7166"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2023-22745"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2162610"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2023-7166.html"
    }
  ],
  "related": [
    "CVE-2023-22745"
  ],
  "summary": "Low: tpm2-tss security and enhancement update"
}

CVE-2023-22745 (GCVE-0-2023-22745)

Vulnerability from cvelistv5 – Published: 2023-01-19 22:12 – Updated: 2025-11-21 19:10

Title

Buffer Overlow in TSS2_RC_Decode in tpm2-tss

Summary

tpm2-tss is an open source software implementation of the Trusted Computing Group (TCG) Trusted Platform Module (TPM) 2 Software Stack (TSS2). In versions prior to 4.1.0-rc0, 4.0.1, and 3.2.2-rc1, `Tss2_RC_SetHandler` and `Tss2_RC_Decode` both index into `layer_handler` with an 8 bit layer number, but the array only has `TPM2_ERROR_TSS2_RC_LAYER_COUNT` entries, so trying to add a handler for higher-numbered layers or decode a response code with such a layer number reads/writes past the end of the buffer. This Buffer overrun, could result in arbitrary code execution. An example attack would be a MiTM bus attack that returns 0xFFFFFFFF for the RC. Given the common use case of TPM modules an attacker must have local access to the target machine with local system privileges which allows access to the TPM system. Usually TPM access requires administrative privilege. Versions 4.1.0-rc0, 4.0.1, and 3.2.2-rc1 fix the issue.

Severity ?

6.4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/tpm2-software/tpm2-tss/securit…	x_refsource_CONFIRM
	https://github.com/tpm2-software/tpm2-tss/commit/…	x_refsource_MISC
	https://github.com/tpm2-software/tpm2-tss/commit/…	x_refsource_MISC
	https://github.com/tpm2-software/tpm2-tss/commit/…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	tpm2-software	tpm2-tss	Affected: < 4.0.1 Affected: < 3.2.2-rc0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T10:20:30.190Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/tpm2-software/tpm2-tss/security/advisories/GHSA-4j3v-fh23-vx67",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/tpm2-software/tpm2-tss/security/advisories/GHSA-4j3v-fh23-vx67"
          },
          {
            "name": "https://github.com/tpm2-software/tpm2-tss/commit/306490c8d848c367faa2d9df81f5e69dab46ffb5",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/tpm2-software/tpm2-tss/commit/306490c8d848c367faa2d9df81f5e69dab46ffb5"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-22745",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-10T21:01:10.360058Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-10T21:21:37.784Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "tpm2-tss",
          "vendor": "tpm2-software",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.0.1"
            },
            {
              "status": "affected",
              "version": "\u003c 3.2.2-rc0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "tpm2-tss is an open source software implementation of the Trusted Computing Group (TCG) Trusted Platform Module (TPM) 2 Software Stack (TSS2). In versions prior to 4.1.0-rc0, 4.0.1, and 3.2.2-rc1, `Tss2_RC_SetHandler` and `Tss2_RC_Decode` both index into `layer_handler` with an 8 bit layer number, but the array only has `TPM2_ERROR_TSS2_RC_LAYER_COUNT` entries, so trying to add a handler for higher-numbered layers or decode a response code with such a layer number reads/writes past the end of the buffer. This Buffer overrun, could result in arbitrary code execution. An example attack would be a MiTM bus attack that returns 0xFFFFFFFF for the RC. Given the common use case of TPM modules an attacker must have local access to the target machine with local system privileges which allows access to the TPM system. Usually TPM access requires administrative privilege. Versions 4.1.0-rc0, 4.0.1, and 3.2.2-rc1 fix the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-120",
              "description": "CWE-120: Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-11-21T19:10:18.693Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/tpm2-software/tpm2-tss/security/advisories/GHSA-4j3v-fh23-vx67",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/tpm2-software/tpm2-tss/security/advisories/GHSA-4j3v-fh23-vx67"
        },
        {
          "name": "https://github.com/tpm2-software/tpm2-tss/commit/306490c8d848c367faa2d9df81f5e69dab46ffb5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tpm2-software/tpm2-tss/commit/306490c8d848c367faa2d9df81f5e69dab46ffb5"
        },
        {
          "name": "https://github.com/tpm2-software/tpm2-tss/commit/49107d65d5c7be430671398416bbd89dae4e34e7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tpm2-software/tpm2-tss/commit/49107d65d5c7be430671398416bbd89dae4e34e7"
        },
        {
          "name": "https://github.com/tpm2-software/tpm2-tss/commit/7ab42953216adec046d000a5e3085f3ee5e9cabf",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tpm2-software/tpm2-tss/commit/7ab42953216adec046d000a5e3085f3ee5e9cabf"
        }
      ],
      "source": {
        "advisory": "GHSA-4j3v-fh23-vx67",
        "discovery": "UNKNOWN"
      },
      "title": "Buffer Overlow in TSS2_RC_Decode in tpm2-tss"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-22745",
    "datePublished": "2023-01-19T22:12:40.208Z",
    "dateReserved": "2023-01-06T14:21:05.893Z",
    "dateUpdated": "2025-11-21T19:10:18.693Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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