github - ghsa-8vv8-fmp2-x4c4

ghsa-8vv8-fmp2-x4c4

Vulnerability from github

Published

2024-11-19 18:31

Modified

2024-12-09 15:31

Severity ?

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

Details

In the Linux kernel, the following vulnerability has been resolved:

tpm: Lock TPM chip in tpm_pm_suspend() first

Setting TPM_CHIP_FLAG_SUSPENDED in the end of tpm_pm_suspend() can be racy according, as this leaves window for tpm_hwrng_read() to be called while the operation is in progress. The recent bug report gives also evidence of this behaviour.

Aadress this by locking the TPM chip before checking any chip->flags both in tpm_pm_suspend() and tpm_hwrng_read(). Move TPM_CHIP_FLAG_SUSPENDED check inside tpm_get_random() so that it will be always checked only when the lock is reserved.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53085"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-19T18:15:27Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: Lock TPM chip in tpm_pm_suspend() first\n\nSetting TPM_CHIP_FLAG_SUSPENDED in the end of tpm_pm_suspend() can be racy\naccording, as this leaves window for tpm_hwrng_read() to be called while\nthe operation is in progress. The recent bug report gives also evidence of\nthis behaviour.\n\nAadress this by locking the TPM chip before checking any chip-\u003eflags both\nin tpm_pm_suspend() and tpm_hwrng_read(). Move TPM_CHIP_FLAG_SUSPENDED\ncheck inside tpm_get_random() so that it will be always checked only when\nthe lock is reserved.",
  "id": "GHSA-8vv8-fmp2-x4c4",
  "modified": "2024-12-09T15:31:33Z",
  "published": "2024-11-19T18:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53085"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9265fed6db601ee2ec47577815387458ef4f047a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bc203fe416abdd1c29da594565a7c3c4e979488e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cfaf83501a0cbb104499c5b0892ee5ebde4e967f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2024-53085

Vulnerability from cvelistv5

Published

2024-11-19 17:45

Modified

2024-12-19 09:38

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: tpm: Lock TPM chip in tpm_pm_suspend() first Setting TPM_CHIP_FLAG_SUSPENDED in the end of tpm_pm_suspend() can be racy according, as this leaves window for tpm_hwrng_read() to be called while the operation is in progress. The recent bug report gives also evidence of this behaviour. Aadress this by locking the TPM chip before checking any chip->flags both in tpm_pm_suspend() and tpm_hwrng_read(). Move TPM_CHIP_FLAG_SUSPENDED check inside tpm_get_random() so that it will be always checked only when the lock is reserved.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/cfaf83501a0cbb104499c5b0892ee5ebde4e967f
	https://git.kernel.org/stable/c/bc203fe416abdd1c29da594565a7c3c4e979488e
	https://git.kernel.org/stable/c/9265fed6db601ee2ec47577815387458ef4f047a

Impacted products

Vendor

Product

Version

▼

Linux

Version: 99d46450625590d410f86fe4660a5eff7d3b8343
Version: 99d46450625590d410f86fe4660a5eff7d3b8343
Version: 99d46450625590d410f86fe4660a5eff7d3b8343

Linux

Version: 6.4

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/tpm/tpm-chip.c",
            "drivers/char/tpm/tpm-interface.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cfaf83501a0cbb104499c5b0892ee5ebde4e967f",
              "status": "affected",
              "version": "99d46450625590d410f86fe4660a5eff7d3b8343",
              "versionType": "git"
            },
            {
              "lessThan": "bc203fe416abdd1c29da594565a7c3c4e979488e",
              "status": "affected",
              "version": "99d46450625590d410f86fe4660a5eff7d3b8343",
              "versionType": "git"
            },
            {
              "lessThan": "9265fed6db601ee2ec47577815387458ef4f047a",
              "status": "affected",
              "version": "99d46450625590d410f86fe4660a5eff7d3b8343",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/tpm/tpm-chip.c",
            "drivers/char/tpm/tpm-interface.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
            {
              "lessThan": "6.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: Lock TPM chip in tpm_pm_suspend() first\n\nSetting TPM_CHIP_FLAG_SUSPENDED in the end of tpm_pm_suspend() can be racy\naccording, as this leaves window for tpm_hwrng_read() to be called while\nthe operation is in progress. The recent bug report gives also evidence of\nthis behaviour.\n\nAadress this by locking the TPM chip before checking any chip-\u003eflags both\nin tpm_pm_suspend() and tpm_hwrng_read(). Move TPM_CHIP_FLAG_SUSPENDED\ncheck inside tpm_get_random() so that it will be always checked only when\nthe lock is reserved."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:38:49.816Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cfaf83501a0cbb104499c5b0892ee5ebde4e967f"
        },
        {
          "url": "https://git.kernel.org/stable/c/bc203fe416abdd1c29da594565a7c3c4e979488e"
        },
        {
          "url": "https://git.kernel.org/stable/c/9265fed6db601ee2ec47577815387458ef4f047a"
        }
      ],
      "title": "tpm: Lock TPM chip in tpm_pm_suspend() first",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-53085",
    "datePublished": "2024-11-19T17:45:14.209Z",
    "dateReserved": "2024-11-19T17:17:24.979Z",
    "dateUpdated": "2024-12-19T09:38:49.816Z",
    "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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