fkie_cve-2020-11725
Vulnerability from fkie_nvd
Published
2020-04-12 22:15
Modified
2024-11-21 04:58
Summary
snd_ctl_elem_add in sound/core/control.c in the Linux kernel through 5.6.3 has a count=info->owner line, which later affects a private_size*count multiplication for unspecified "interesting side effects." NOTE: kernel engineers dispute this finding, because it could be relevant only if new callers were added that were unfamiliar with the misuse of the info->owner field to represent data unrelated to the "owner" concept. The existing callers, SNDRV_CTL_IOCTL_ELEM_ADD and SNDRV_CTL_IOCTL_ELEM_REPLACE, have been designed to misuse the info->owner field in a safe way
Impacted products
Vendor Product Version
linux linux_kernel *



{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "85944226-53BE-401C-BF72-63F1727A3A9F",
              "versionEndIncluding": "5.6.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "snd_ctl_elem_add in sound/core/control.c in the Linux kernel through 5.6.3 has a count=info-\u003eowner line, which later affects a private_size*count multiplication for unspecified \"interesting side effects.\" NOTE: kernel engineers dispute this finding, because it could be relevant only if new callers were added that were unfamiliar with the misuse of the info-\u003eowner field to represent data unrelated to the \"owner\" concept. The existing callers, SNDRV_CTL_IOCTL_ELEM_ADD and SNDRV_CTL_IOCTL_ELEM_REPLACE, have been designed to misuse the info-\u003eowner field in a safe way"
    },
    {
      "lang": "es",
      "value": "** EN DISPUTA ** La funci\u00f3n snd_ctl_elem_add en el archivo sound/core/control.c en el kernel de Linux versiones hasta 5.6.3, presenta un error de tipograf\u00eda de count=info-)owner, que se maneja inapropiadamente en la multiplicaci\u00f3n private_size*count. NOTA: los ingenieros de kernel disputan este hallazgo, porque podr\u00eda ser relevante s\u00f3lo si se agregaran nuevos llamadores que no estuvieran familiarizados con el mal uso del campo info-\u0026gt;owner para representar datos no relacionados con el concepto de \"owner\". Los llamadores existentes, SNDRV_CTL_IOCTL_ELEM_ADD y SNDRV_CTL_IOCTL_ELEM_REPLACE, han sido dise\u00f1ados para usar indebidamente el campo info-\u0026gt;owner de una manera segura."
    }
  ],
  "id": "CVE-2020-11725",
  "lastModified": "2024-11-21T04:58:29.453",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "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": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-04-12T22:15:11.900",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/sound/core/control.c#L1434-L1474"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://twitter.com/yabbadabbadrew/status/1248632267028582400"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/sound/core/control.c#L1434-L1474"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://twitter.com/yabbadabbadrew/status/1248632267028582400"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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