nvd-json-data-feeds/CVE-2021/CVE-2021-454xx/CVE-2021-45402.json

{
  "id": "CVE-2021-45402",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2022-02-11T15:15:07.687",
  "lastModified": "2022-02-23T18:12:39.887",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "The check_alu_op() function in kernel/bpf/verifier.c in the Linux kernel through v5.16-rc5 did not properly update bounds while handling the mov32 instruction, which allows local users to obtain potentially sensitive address information, aka a \"pointer leak.\""
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n check_alu_op() en el archivo kernel/bpf/verifier.c en el kernel de Linux versiones hasta v5.16-rc5, no actualizaba correctamente los l\u00edmites mientras manejaba la instrucci\u00f3n mov32, que permite a usuarios locales obtener informaci\u00f3n de direcciones potencialmente confidencial, tambi\u00e9n se conoce como \"pointer leak.\""
    }
  ],
  "metrics": {
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      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
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          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 2.1
        },
        "baseSeverity": "LOW",
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-668"
        }
      ]
    }
  ],
  "configurations": [
    {
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          "operator": "OR",
          "negate": false,
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  "references": [
    {
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=3cf2b61eb06765e27fec6799292d9fb46d0b7e60",
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      "source": "cve@mitre.org",
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      "source": "cve@mitre.org",
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}