cve-2021-47511
Vulnerability from cvelistv5
Published
2024-05-24 15:09
Modified
2024-12-19 07:43
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: ALSA: pcm: oss: Fix negative period/buffer sizes The period size calculation in OSS layer may receive a negative value as an error, but the code there assumes only the positive values and handle them with size_t. Due to that, a too big value may be passed to the lower layers. This patch changes the code to handle with ssize_t and adds the proper error checks appropriately.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049
Impacted products
Vendor Product Version
Linux Linux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2021-47511",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-29T17:05:32.798414Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "description": "CWE-noinfo Not enough information",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-04T20:38:49.373Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:39:59.645Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/core/oss/pcm_oss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "be8869d388593e57223ad39297c8e54be632f2f2",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "502e1146873d870f87da3b8f93d6bf2de5f38d0c",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "8af815ab052eaf74addbbfb556d63ce2137c0e1b",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "f96c0959c1ee92adc911c10d6ec209af50105049",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "f12c8a7515f641885677960af450082569a87243",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "02b2b691b77cd7b951fa7b6c9d44d4e472cdc823",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "9d2479c960875ca1239bcb899f386970c13d9cfe",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/core/oss/pcm_oss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "4.4.*",
              "status": "unaffected",
              "version": "4.4.295",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.293",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.221",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.165",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.85",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: oss: Fix negative period/buffer sizes\n\nThe period size calculation in OSS layer may receive a negative value\nas an error, but the code there assumes only the positive values and\nhandle them with size_t.  Due to that, a too big value may be passed\nto the lower layers.\n\nThis patch changes the code to handle with ssize_t and adds the proper\nerror checks appropriately."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T07:43:52.411Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2"
        },
        {
          "url": "https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c"
        },
        {
          "url": "https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b"
        },
        {
          "url": "https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049"
        },
        {
          "url": "https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243"
        },
        {
          "url": "https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823"
        },
        {
          "url": "https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc"
        },
        {
          "url": "https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe"
        }
      ],
      "title": "ALSA: pcm: oss: Fix negative period/buffer sizes",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47511",
    "datePublished": "2024-05-24T15:09:26.695Z",
    "dateReserved": "2024-05-24T15:02:54.823Z",
    "dateUpdated": "2024-12-19T07:43:52.411Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47511\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-24T15:15:12.237\",\"lastModified\":\"2024-11-21T06:36:24.140\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nALSA: pcm: oss: Fix negative period/buffer sizes\\n\\nThe period size calculation in OSS layer may receive a negative value\\nas an error, but the code there assumes only the positive values and\\nhandle them with size_t.  Due to that, a too big value may be passed\\nto the lower layers.\\n\\nThis patch changes the code to handle with ssize_t and adds the proper\\nerror checks appropriately.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: pcm: oss: corrige tama\u00f1os de per\u00edodo/b\u00fafer negativos El c\u00e1lculo del tama\u00f1o del per\u00edodo en la capa OSS puede recibir un valor negativo como error, pero el c\u00f3digo all\u00ed asume solo los valores positivos y manejarlos con size_t. Debido a esto, es posible que se pase un valor demasiado grande a las capas inferiores. Este parche cambia el c\u00f3digo para manejar con ssize_t y agrega las comprobaciones de errores adecuadas.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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.