fkie_cve-2024-42151
Vulnerability from fkie_nvd
Published
2024-07-30 08:15
Modified
2024-12-09 23:09
Severity ?
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: bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable Test case dummy_st_ops/dummy_init_ret_value passes NULL as the first parameter of the test_1() function. Mark this parameter as nullable to make verifier aware of such possibility. Otherwise, NULL check in the test_1() code: SEC("struct_ops/test_1") int BPF_PROG(test_1, struct bpf_dummy_ops_state *state) { if (!state) return ...; ... access state ... } Might be removed by verifier, thus triggering NULL pointer dereference under certain conditions.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23Patch
Impacted products
Vendor Product Version
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EDD11F94-D8F3-477D-931C-7806D6E5D6D3",
              "versionEndExcluding": "6.9.9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable\n\nTest case dummy_st_ops/dummy_init_ret_value passes NULL as the first\nparameter of the test_1() function. Mark this parameter as nullable to\nmake verifier aware of such possibility.\nOtherwise, NULL check in the test_1() code:\n\n      SEC(\"struct_ops/test_1\")\n      int BPF_PROG(test_1, struct bpf_dummy_ops_state *state)\n      {\n            if (!state)\n                    return ...;\n\n            ... access state ...\n      }\n\nMight be removed by verifier, thus triggering NULL pointer dereference\nunder certain conditions."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: marcar el par\u00e1metro bpf_dummy_struct_ops.test_1 como anulable Caso de prueba dummy_st_ops/dummy_init_ret_value pasa NULL como primer par\u00e1metro de la funci\u00f3n test_1(). Marque este par\u00e1metro como anulable para que el verificador sea consciente de tal posibilidad. De lo contrario, NULL verifica el c\u00f3digo test_1(): SEC(\"struct_ops/test_1\") int BPF_PROG(test_1, struct bpf_dummy_ops_state *state) { if (!state) return...; ... estado de acceso ... } El verificador podr\u00eda eliminarlo, lo que provocar\u00eda la desreferencia del puntero NULL bajo ciertas condiciones."
    }
  ],
  "id": "CVE-2024-42151",
  "lastModified": "2024-12-09T23:09:53.587",
  "metrics": {
    "cvssMetricV31": [
      {
        "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": "2024-07-30T08:15:06.690",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087d"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.