CVE-2021-47474 (GCVE-0-2021-47474)

Vulnerability from cvelistv5 – Published: 2024-05-22 08:19 – Updated: 2025-05-04 07:11
VLAI?
Title
comedi: vmk80xx: fix bulk-buffer overflow
Summary
In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix bulk-buffer overflow The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doing bulk transfers.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < e0e6a63fd97ad95fe05dfd77268a1952551e11a7 (git)
Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 7cfb35db607760698d299fd1cf7402dfa8f09973 (git)
Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 0866dcaa828c21bc2f94dac00e086078f11b5772 (git)
Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 063f576c43d589a4c153554b681d32b3f8317c7b (git)
Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 1ae4715121a57bc6fa29fd992127b01907f2f993 (git)
Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < b7fd7f3387f070215e6be341e68eb5c087eeecc0 (git)
Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 7b0e356189327287d0eb98ec081bd6dd97068cd3 (git)
Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2 (git)
Affected: 985cafccbf9b7f862aa1c5ee566801e18b5161fb , < 78cdfd62bd54af615fba9e3ca1ba35de39d3871d (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.31
Unaffected: 0 , < 2.6.31 (semver)
Unaffected: 4.4.292 , ≤ 4.4.* (semver)
Unaffected: 4.9.290 , ≤ 4.9.* (semver)
Unaffected: 4.14.255 , ≤ 4.14.* (semver)
Unaffected: 4.19.217 , ≤ 4.19.* (semver)
Unaffected: 5.4.159 , ≤ 5.4.* (semver)
Unaffected: 5.10.79 , ≤ 5.10.* (semver)
Unaffected: 5.14.18 , ≤ 5.14.* (semver)
Unaffected: 5.15.2 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
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true, \"versionEndExcluding\": \"4.14.255\", \"versionStartIncluding\": \"2.6.31\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.217\", \"versionStartIncluding\": \"2.6.31\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.159\", \"versionStartIncluding\": \"2.6.31\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.79\", \"versionStartIncluding\": \"2.6.31\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.14.18\", \"versionStartIncluding\": \"2.6.31\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.2\", \"versionStartIncluding\": \"2.6.31\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16\", \"versionStartIncluding\": \"2.6.31\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:11:42.847Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47474\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:11:42.847Z\", \"dateReserved\": \"2024-05-22T06:20:56.199Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-22T08:19:28.759Z\", \"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.