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
EPSS score ?
0.05% (0.11948)
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 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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\"f96c0959c1ee\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"f12c8a7515f6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"02b2b691b77c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"00a860678098\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"9d2479c96087\", \"versionType\": \"git\"}], \"programFiles\": [\"sound/core/oss/pcm_oss.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"4.4.295\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.4.*\"}, {\"status\": \"unaffected\", \"version\": \"4.9.293\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.258\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.221\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.165\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.85\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.8\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"sound/core/oss/pcm_oss.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"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\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T12:07:20.629Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2021-47511\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T20:38:49.373Z\", \"dateReserved\": \"2024-05-24T15:02:54.823Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-24T15:09:26.695Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


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