csaf_redhat - rhsa-2024

rhsa-2024_4408

Vulnerability from csaf_redhat

Published

2024-07-09 08:53

Modified

2024-11-23 00:00

Summary

Red Hat Security Advisory: tpm2-tss security update

Notes

Topic

An update for tpm2-tss is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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            "BaseOS-8.6.0.Z.E4S:tpm2-tss-debuginfo-0:2.3.2-5.el8_6.x86_64",
            "BaseOS-8.6.0.Z.E4S:tpm2-tss-debugsource-0:2.3.2-5.el8_6.i686",
            "BaseOS-8.6.0.Z.E4S:tpm2-tss-debugsource-0:2.3.2-5.el8_6.ppc64le",
            "BaseOS-8.6.0.Z.E4S:tpm2-tss-debugsource-0:2.3.2-5.el8_6.x86_64",
            "BaseOS-8.6.0.Z.E4S:tpm2-tss-devel-0:2.3.2-5.el8_6.i686",
            "BaseOS-8.6.0.Z.E4S:tpm2-tss-devel-0:2.3.2-5.el8_6.ppc64le",
            "BaseOS-8.6.0.Z.E4S:tpm2-tss-devel-0:2.3.2-5.el8_6.x86_64",
            "BaseOS-8.6.0.Z.TUS:tpm2-tss-0:2.3.2-5.el8_6.i686",
            "BaseOS-8.6.0.Z.TUS:tpm2-tss-0:2.3.2-5.el8_6.src",
            "BaseOS-8.6.0.Z.TUS:tpm2-tss-0:2.3.2-5.el8_6.x86_64",
            "BaseOS-8.6.0.Z.TUS:tpm2-tss-debuginfo-0:2.3.2-5.el8_6.i686",
            "BaseOS-8.6.0.Z.TUS:tpm2-tss-debuginfo-0:2.3.2-5.el8_6.x86_64",
            "BaseOS-8.6.0.Z.TUS:tpm2-tss-debugsource-0:2.3.2-5.el8_6.i686",
            "BaseOS-8.6.0.Z.TUS:tpm2-tss-debugsource-0:2.3.2-5.el8_6.x86_64",
            "BaseOS-8.6.0.Z.TUS:tpm2-tss-devel-0:2.3.2-5.el8_6.i686",
            "BaseOS-8.6.0.Z.TUS:tpm2-tss-devel-0:2.3.2-5.el8_6.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "tpm2-tss: Buffer Overlow in TSS2_RC_Decode"
    }
  ]
}

cve-2023-22745

Vulnerability from cvelistv5

Published

2023-01-19 22:12

Modified

2024-08-02 10:20

Severity ?

6.4 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Summary

tpm2-tss is an open source software implementation of the Trusted Computing Group (TCG) Trusted Platform Module (TPM) 2 Software Stack (TSS2). In affected versions `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.

References

▼	URL	Tags
	https://github.com/tpm2-software/tpm2-tss/security/advisories/GHSA-4j3v-fh23-vx67	x_refsource_CONFIRM
	https://github.com/tpm2-software/tpm2-tss/commit/306490c8d848c367faa2d9df81f5e69dab46ffb5	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

tpm2-software

tpm2-tss

Version: <= 4.0.0

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"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "tpm2-tss",
          "vendor": "tpm2-software",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 4.0.0"
            }
          ]
        }
      ],
      "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 affected versions `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. "
        }
      ],
      "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": "2023-01-19T22:12:40.208Z",
        "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"
        }
      ],
      "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": "2024-08-02T10:20:30.190Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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