CVE-2021-47403 (GCVE-0-2021-47403)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2025-05-04 07:10
VLAI?
Title
ipack: ipoctal: fix module reference leak
Summary
In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix module reference leak A reference to the carrier module was taken on every open but was only released once when the final reference to the tty struct was dropped. Fix this by taking the module reference and initialising the tty driver data when installing the tty.
Severity ?
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 82a82340bab6c251e0705339f60763718eaa2a22 , < 31398849b84ebae0d43a1cf379cb9895597f221a (git)
Affected: 82a82340bab6c251e0705339f60763718eaa2a22 , < c0adb5a947dec6cff7050ec56d78ecd3916f9ce6 (git)
Affected: 82a82340bab6c251e0705339f60763718eaa2a22 , < dde4c1429b97383689f755ce92b4ed1e84a9c92b (git)
Affected: 82a82340bab6c251e0705339f60763718eaa2a22 , < 9c5b77a7ffc983b2429ce158b50497c5d3c86a69 (git)
Affected: 82a82340bab6c251e0705339f60763718eaa2a22 , < 3253c87e1e5bc0107aab773af2f135ebccf38666 (git)
Affected: 82a82340bab6c251e0705339f60763718eaa2a22 , < 7cea848678470daadbfdaa6a112b823c290f900c (git)
Affected: 82a82340bab6c251e0705339f60763718eaa2a22 , < 811178f296b16af30264def74c8d2179a72d5562 (git)
Affected: 82a82340bab6c251e0705339f60763718eaa2a22 , < bb8a4fcb2136508224c596a7e665bdba1d7c3c27 (git)
Create a notification for this product.
    Linux Linux Affected: 3.18
Unaffected: 0 , < 3.18 (semver)
Unaffected: 4.4.286 , ≤ 4.4.* (semver)
Unaffected: 4.9.285 , ≤ 4.9.* (semver)
Unaffected: 4.14.249 , ≤ 4.14.* (semver)
Unaffected: 4.19.209 , ≤ 4.19.* (semver)
Unaffected: 5.4.151 , ≤ 5.4.* (semver)
Unaffected: 5.10.71 , ≤ 5.10.* (semver)
Unaffected: 5.14.10 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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\"version\": \"5.10.71\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"5.14.10\"}], \"defaultStatus\": \"unknown\"}, {\"cpes\": [\"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*\"], \"vendor\": \"linux\", \"product\": \"linux_kernel\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"5.15\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-200\", \"description\": \"CWE-200 Exposure of Sensitive Information to an Unauthorized Actor\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-22T19:15:52.078Z\"}}], \"cna\": {\"title\": \"ipack: ipoctal: fix module reference leak\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"82a82340bab6c251e0705339f60763718eaa2a22\", \"lessThan\": \"31398849b84ebae0d43a1cf379cb9895597f221a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"82a82340bab6c251e0705339f60763718eaa2a22\", \"lessThan\": \"c0adb5a947dec6cff7050ec56d78ecd3916f9ce6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"82a82340bab6c251e0705339f60763718eaa2a22\", \"lessThan\": \"dde4c1429b97383689f755ce92b4ed1e84a9c92b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"82a82340bab6c251e0705339f60763718eaa2a22\", \"lessThan\": \"9c5b77a7ffc983b2429ce158b50497c5d3c86a69\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"82a82340bab6c251e0705339f60763718eaa2a22\", \"lessThan\": \"3253c87e1e5bc0107aab773af2f135ebccf38666\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"82a82340bab6c251e0705339f60763718eaa2a22\", \"lessThan\": \"7cea848678470daadbfdaa6a112b823c290f900c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"82a82340bab6c251e0705339f60763718eaa2a22\", \"lessThan\": \"811178f296b16af30264def74c8d2179a72d5562\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"82a82340bab6c251e0705339f60763718eaa2a22\", \"lessThan\": \"bb8a4fcb2136508224c596a7e665bdba1d7c3c27\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/ipack/devices/ipoctal.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.18\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.18\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.4.286\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.4.*\"}, {\"status\": \"unaffected\", \"version\": \"4.9.285\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.249\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.209\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.151\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.71\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.14.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.14.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/ipack/devices/ipoctal.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/31398849b84ebae0d43a1cf379cb9895597f221a\"}, {\"url\": \"https://git.kernel.org/stable/c/c0adb5a947dec6cff7050ec56d78ecd3916f9ce6\"}, {\"url\": \"https://git.kernel.org/stable/c/dde4c1429b97383689f755ce92b4ed1e84a9c92b\"}, {\"url\": \"https://git.kernel.org/stable/c/9c5b77a7ffc983b2429ce158b50497c5d3c86a69\"}, {\"url\": \"https://git.kernel.org/stable/c/3253c87e1e5bc0107aab773af2f135ebccf38666\"}, {\"url\": \"https://git.kernel.org/stable/c/7cea848678470daadbfdaa6a112b823c290f900c\"}, {\"url\": \"https://git.kernel.org/stable/c/811178f296b16af30264def74c8d2179a72d5562\"}, {\"url\": \"https://git.kernel.org/stable/c/bb8a4fcb2136508224c596a7e665bdba1d7c3c27\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipack: ipoctal: fix module reference leak\\n\\nA reference to the carrier module was taken on every open but was only\\nreleased once when the final reference to the tty struct was dropped.\\n\\nFix this by taking the module reference and initialising the tty driver\\ndata when installing the tty.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.4.286\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.285\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.249\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.209\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.151\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.71\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.14.10\", \"versionStartIncluding\": \"3.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15\", \"versionStartIncluding\": \"3.18\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:10:14.660Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47403\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:10:14.660Z\", \"dateReserved\": \"2024-05-21T14:58:30.816Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T15:03:57.344Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.