github - ghsa-fhmc-454p-hp6f

GHSA-FHMC-454P-HP6F

Vulnerability from github – Published: 2025-12-24 12:30 – Updated: 2025-12-24 12:30

Details

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

crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id

Use check_add_overflow() to guard against potential integer overflows when adding the binary blob lengths and the size of an asymmetric_key_id structure and return ERR_PTR(-EOVERFLOW) accordingly. This prevents a possible buffer overflow when copying data from potentially malicious X.509 certificate fields that can be arbitrarily large, such as ASN.1 INTEGER serial numbers, issuer names, etc.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68724"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T11:16:01Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id\n\nUse check_add_overflow() to guard against potential integer overflows\nwhen adding the binary blob lengths and the size of an asymmetric_key_id\nstructure and return ERR_PTR(-EOVERFLOW) accordingly. This prevents a\npossible buffer overflow when copying data from potentially malicious\nX.509 certificate fields that can be arbitrarily large, such as ASN.1\nINTEGER serial numbers, issuer names, etc.",
  "id": "GHSA-fhmc-454p-hp6f",
  "modified": "2025-12-24T12:30:30Z",
  "published": "2025-12-24T12:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68724"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6af753ac5205115e6c310c8c4236c01b59a1c44f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7090a5c153105b9fd221a5a81459ee8cd5babd6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c73be4f51eed98fa0c7c189db8f279e1c86bfbf7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df0845cf447ae1556c3440b8b155de0926cbaa56"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-68724 (GCVE-0-2025-68724)

Vulnerability from cvelistv5 – Published: 2025-12-24 10:33 – Updated: 2025-12-24 10:33

Title

crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id Use check_add_overflow() to guard against potential integer overflows when adding the binary blob lengths and the size of an asymmetric_key_id structure and return ERR_PTR(-EOVERFLOW) accordingly. This prevents a possible buffer overflow when copying data from potentially malicious X.509 certificate fields that can be arbitrarily large, such as ASN.1 INTEGER serial numbers, issuer names, etc.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c73be4f51eed98fa0…
	https://git.kernel.org/stable/c/6af753ac5205115e6…
	https://git.kernel.org/stable/c/b7090a5c153105b9f…
	https://git.kernel.org/stable/c/df0845cf447ae1556…

Impacted products

Vendor

Product

Version

Linux

Affected: 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 , < c73be4f51eed98fa0c7c189db8f279e1c86bfbf7 (git)
Affected: 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 , < 6af753ac5205115e6c310c8c4236c01b59a1c44f (git)
Affected: 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 , < b7090a5c153105b9fd221a5a81459ee8cd5babd6 (git)
Affected: 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7 , < df0845cf447ae1556c3440b8b155de0926cbaa56 (git)

Linux

Affected: 3.18
Unaffected: 0 , < 3.18 (semver)
Unaffected: 6.12.63 , ≤ 6.12.* (semver)
Unaffected: 6.17.13 , ≤ 6.17.* (semver)
Unaffected: 6.18.2 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "crypto/asymmetric_keys/asymmetric_type.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "7901c1a8effbe5f89673bfc09d6e37b8f334f1a7",
              "versionType": "git"
            },
            {
              "lessThan": "6af753ac5205115e6c310c8c4236c01b59a1c44f",
              "status": "affected",
              "version": "7901c1a8effbe5f89673bfc09d6e37b8f334f1a7",
              "versionType": "git"
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            {
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          ]
        },
        {
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          "vendor": "Linux",
          "versions": [
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              "version": "3.18"
            },
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              "version": "0",
              "versionType": "semver"
            },
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            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.13",
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            },
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              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.63",
                  "versionStartIncluding": "3.18",
                  "vulnerable": true
                },
                {
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      "providerMetadata": {
        "dateUpdated": "2025-12-24T10:33:08.932Z",
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    "datePublished": "2025-12-24T10:33:08.932Z",
    "dateReserved": "2025-12-24T10:30:51.027Z",
    "dateUpdated": "2025-12-24T10:33:08.932Z",
    "state": "PUBLISHED"
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}

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.

Action not permitted

GHSA-FHMC-454P-HP6F

CVE-2025-68724 (GCVE-0-2025-68724)

Tags

Sightings

Nomenclature