Vulnerability-Lookup

FKIE_CVE-2024-56681

Vulnerability from fkie_nvd - Published: 2024-12-28 10:15 - Updated: 2026-08-04 11:22

Severity

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

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: bcm - add error check in the ahash_hmac_init function The ahash_init functions may return fails. The ahash_hmac_init should not return ok when ahash_init returns error. For an example, ahash_init will return -ENOMEM when allocation memory is error.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/05f0a3f5477ecaa1cf46448504afe9e7c2e96fcc	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/19630cf57233e845b6ac57c9c969a4888925467b	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/28f8ffa945f7d7150463e15097ea73b19529d6f5	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4ea3e3b761e371102bb1486778e2f8dbc9e37413	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/75e1e38e5d80d6d9011b7322698ffba3dd3db30a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8f1a9a960b1107bd0e0ec3736055f5ed0e717edf	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ae5253313e0ea5f00c06176074592b7f493c8546	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bba9e38c5ad41d0a88b22a59e5b6dd3e31825118	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ee36db8e8203420e6d5c42eb9428920c2fc36532	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/bcm/cipher.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "9d12ba86f818aa9cfe9f01b750336aa441f2ffa2",
              "versionType": "git"
            },
            {
              "lessThan": "75e1e38e5d80d6d9011b7322698ffba3dd3db30a",
              "status": "affected",
              "version": "9d12ba86f818aa9cfe9f01b750336aa441f2ffa2",
              "versionType": "git"
            },
            {
              "lessThan": "28f8ffa945f7d7150463e15097ea73b19529d6f5",
              "status": "affected",
              "version": "9d12ba86f818aa9cfe9f01b750336aa441f2ffa2",
              "versionType": "git"
            },
            {
              "lessThan": "4ea3e3b761e371102bb1486778e2f8dbc9e37413",
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              "versionType": "git"
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            {
              "lessThan": "05f0a3f5477ecaa1cf46448504afe9e7c2e96fcc",
              "status": "affected",
              "version": "9d12ba86f818aa9cfe9f01b750336aa441f2ffa2",
              "versionType": "git"
            },
            {
              "lessThan": "ae5253313e0ea5f00c06176074592b7f493c8546",
              "status": "affected",
              "version": "9d12ba86f818aa9cfe9f01b750336aa441f2ffa2",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "9d12ba86f818aa9cfe9f01b750336aa441f2ffa2",
              "versionType": "git"
            },
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              "status": "affected",
              "version": "9d12ba86f818aa9cfe9f01b750336aa441f2ffa2",
              "versionType": "git"
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          ]
        },
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          "product": "Linux",
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            "drivers/crypto/bcm/cipher.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.11"
            },
            {
              "lessThan": "4.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.325",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.287",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.231",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.174",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2E896CE0-6F5D-4FEF-B4C4-47311F4B507D",
              "versionEndExcluding": "4.19.325",
              "versionStartIncluding": "4.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E4B15788-D35E-4E5B-A9C0-070AE3729B34",
              "versionEndExcluding": "5.4.287",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "B5C644CC-2BD7-4E32-BC54-8DCC7ABE9935",
              "versionEndExcluding": "5.10.231",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "419FD073-1517-4FD5-8158-F94BC68A1E89",
              "versionEndExcluding": "5.15.174",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "09AC6122-E2A4-40FE-9D33-268A1B2EC265",
              "versionEndExcluding": "6.1.120",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CA16DEE3-ABEC-4449-9F4A-7A3DC4FC36C7",
              "versionEndExcluding": "6.6.64",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "21434379-192D-472F-9B54-D45E3650E893",
              "versionEndExcluding": "6.11.11",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D8882B1B-2ABC-4838-AC1D-DBDBB5764776",
              "versionEndExcluding": "6.12.2",
              "versionStartIncluding": "6.12",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: bcm - add error check in the ahash_hmac_init function\n\nThe ahash_init functions may return fails. The ahash_hmac_init should\nnot return ok when ahash_init returns error. For an example, ahash_init\nwill return -ENOMEM when allocation memory is error."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: bcm - a\u00f1adir comprobaci\u00f3n de errores en la funci\u00f3n ahash_hmac_init Las funciones ahash_init pueden devolver errores. La funci\u00f3n ahash_hmac_init no deber\u00eda devolver ok cuando ahash_init devuelve un error. Por ejemplo, ahash_init devolver\u00e1 -ENOMEM cuando la memoria de asignaci\u00f3n sea err\u00f3nea."
    }
  ],
  "id": "CVE-2024-56681",
  "lastModified": "2026-08-04T11:22:20.943",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-12-28T10:15:09.967",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/05f0a3f5477ecaa1cf46448504afe9e7c2e96fcc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/19630cf57233e845b6ac57c9c969a4888925467b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/28f8ffa945f7d7150463e15097ea73b19529d6f5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4ea3e3b761e371102bb1486778e2f8dbc9e37413"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/75e1e38e5d80d6d9011b7322698ffba3dd3db30a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8f1a9a960b1107bd0e0ec3736055f5ed0e717edf"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ae5253313e0ea5f00c06176074592b7f493c8546"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bba9e38c5ad41d0a88b22a59e5b6dd3e31825118"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/ee36db8e8203420e6d5c42eb9428920c2fc36532"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2024-56681 (GCVE-0-2024-56681)

Vulnerability from cvelistv5 – Published: 2024-12-28 09:46 – Updated: 2026-08-05 11:46

Title

crypto: bcm - add error check in the ahash_hmac_init function

Summary

Severity

7.8 (High)


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

Assigner

Linux mitre root Scorecard

References

11 references

URL	Tags
https://git.kernel.org/stable/c/8f1a9a960b1107bd0…
https://git.kernel.org/stable/c/75e1e38e5d80d6d90…
https://git.kernel.org/stable/c/28f8ffa945f7d7150…
https://git.kernel.org/stable/c/4ea3e3b761e371102…
https://git.kernel.org/stable/c/05f0a3f5477ecaa1c…
https://git.kernel.org/stable/c/ae5253313e0ea5f00…
https://git.kernel.org/stable/c/ee36db8e8203420e6…
https://git.kernel.org/stable/c/bba9e38c5ad41d0a8…
https://git.kernel.org/stable/c/19630cf57233e845b…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 , < 8f1a9a960b1107bd0e0ec3736055f5ed0e717edf (git) Affected: 9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 , < 75e1e38e5d80d6d9011b7322698ffba3dd3db30a (git) Affected: 9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 , < 28f8ffa945f7d7150463e15097ea73b19529d6f5 (git) Affected: 9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 , < 4ea3e3b761e371102bb1486778e2f8dbc9e37413 (git) Affected: 9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 , < 05f0a3f5477ecaa1cf46448504afe9e7c2e96fcc (git) Affected: 9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 , < ae5253313e0ea5f00c06176074592b7f493c8546 (git) Affected: 9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 , < ee36db8e8203420e6d5c42eb9428920c2fc36532 (git) Affected: 9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 , < bba9e38c5ad41d0a88b22a59e5b6dd3e31825118 (git) Affected: 9d12ba86f818aa9cfe9f01b750336aa441f2ffa2 , < 19630cf57233e845b6ac57c9c969a4888925467b (git)
Linux	Linux	Affected: 4.11 Unaffected: 0 , < 4.11 (semver) Unaffected: 4.19.325 , ≤ 4.19.* (semver) Unaffected: 5.4.287 , ≤ 5.4.* (semver) Unaffected: 5.10.231 , ≤ 5.10.* (semver) Unaffected: 5.15.174 , ≤ 5.15.* (semver) Unaffected: 6.1.120 , ≤ 6.1.* (semver) Unaffected: 6.6.64 , ≤ 6.6.* (semver) Unaffected: 6.11.11 , ≤ 6.11.* (semver) Unaffected: 6.12.2 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:52:28.536Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/bcm/cipher.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8f1a9a960b1107bd0e0ec3736055f5ed0e717edf",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "75e1e38e5d80d6d9011b7322698ffba3dd3db30a",
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              "version": "9d12ba86f818aa9cfe9f01b750336aa441f2ffa2",
              "versionType": "git"
            },
            {
              "lessThan": "28f8ffa945f7d7150463e15097ea73b19529d6f5",
              "status": "affected",
              "version": "9d12ba86f818aa9cfe9f01b750336aa441f2ffa2",
              "versionType": "git"
            },
            {
              "lessThan": "4ea3e3b761e371102bb1486778e2f8dbc9e37413",
              "status": "affected",
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              "versionType": "git"
            },
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              "versionType": "git"
            },
            {
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              "versionType": "git"
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              "versionType": "git"
            },
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              "lessThan": "bba9e38c5ad41d0a88b22a59e5b6dd3e31825118",
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              "versionType": "git"
            },
            {
              "lessThan": "19630cf57233e845b6ac57c9c969a4888925467b",
              "status": "affected",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/bcm/cipher.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.11"
            },
            {
              "lessThan": "4.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.325",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.287",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.231",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.174",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.325",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.287",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.231",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.174",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.120",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.64",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.11",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.2",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "4.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: bcm - add error check in the ahash_hmac_init function\n\nThe ahash_init functions may return fails. The ahash_hmac_init should\nnot return ok when ahash_init returns error. For an example, ahash_init\nwill return -ENOMEM when allocation memory is error."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The reliable trigger is a local unprivileged process driving the driver\u0027s ahash through AF_ALG (algif_hash) socket syscalls; in-kernel remote consumers of crypto_ahash_init() on hmac algorithms (tcp_ao, gss_krb5) would additionally require an allocation failure the remote peer cannot control.\nAC:L - The attacker sets a zero-length HMAC key via ALG_SET_KEY, which makes ahash_init() skip setkey and hit the deterministic -ENOKEY error path that frees ctx-\u003eshash without clearing it \u2014 no race, no memory pressure, and the freed object can be groomed between syscalls before the update() use.\nPR:L - Any unprivileged local user can open an AF_ALG hash socket and bind to the driver\u0027s algorithm/driver name (hmac-sha1-iproc); no capability check exists on this path.\nUI:N - The attacker performs the entire socket/setkey/sendmsg sequence itself; no victim action is involved.\nS:U - The corruption is confined to kernel heap memory within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The stale ctx-\u003eshash is dereferenced as a shash_desc, so an attacker who reclaims the freed slab object controls the tfm pointer and the resulting digest data returned to userspace, giving a use-after-free read primitive over kernel memory.\nI:H - crypto_shash_update()/final() perform an indirect call through a function-pointer table reached from the freed object, and ahash_final() then does crypto_free_shash(ctx-\u003eshash-\u003etfm) plus kfree(ctx-\u003eshash) \u2014 a double free and a free of an attacker-supplied pointer, which is a control-flow-hijack/arbitrary-write primitive.\nA:H - In the -ENOMEM case ctx-\u003eshash is NULL and the subsequent crypto_shash_update()/final() dereference NULL, and in the -ENOKEY case the use-after-free and double free reliably oops or panic the kernel."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:46:02.716Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8f1a9a960b1107bd0e0ec3736055f5ed0e717edf"
        },
        {
          "url": "https://git.kernel.org/stable/c/75e1e38e5d80d6d9011b7322698ffba3dd3db30a"
        },
        {
          "url": "https://git.kernel.org/stable/c/28f8ffa945f7d7150463e15097ea73b19529d6f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/4ea3e3b761e371102bb1486778e2f8dbc9e37413"
        },
        {
          "url": "https://git.kernel.org/stable/c/05f0a3f5477ecaa1cf46448504afe9e7c2e96fcc"
        },
        {
          "url": "https://git.kernel.org/stable/c/ae5253313e0ea5f00c06176074592b7f493c8546"
        },
        {
          "url": "https://git.kernel.org/stable/c/ee36db8e8203420e6d5c42eb9428920c2fc36532"
        },
        {
          "url": "https://git.kernel.org/stable/c/bba9e38c5ad41d0a88b22a59e5b6dd3e31825118"
        },
        {
          "url": "https://git.kernel.org/stable/c/19630cf57233e845b6ac57c9c969a4888925467b"
        }
      ],
      "title": "crypto: bcm - add error check in the ahash_hmac_init function",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56681",
    "datePublished": "2024-12-28T09:46:09.675Z",
    "dateReserved": "2024-12-27T15:00:39.846Z",
    "dateUpdated": "2026-08-05T11:46:02.716Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

FKIE_CVE-2024-56681

CVE-2024-56681 (GCVE-0-2024-56681)

Tags

Sightings

Nomenclature

Related by attack behaviour