CVE-2021-47478 (GCVE-0-2021-47478)

Vulnerability from cvelistv5 – Published: 2024-05-22 08:19 – Updated: 2025-12-18 11:37
VLAI?
Title
isofs: Fix out of bound access for corrupted isofs image
Summary
In the Linux kernel, the following vulnerability has been resolved: isofs: Fix out of bound access for corrupted isofs image When isofs image is suitably corrupted isofs_read_inode() can read data beyond the end of buffer. Sanity-check the directory entry length before using it.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 156ce5bb6cc43a80a743810199defb1dc3f55b7f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9ec33a9b8790c212cc926a88c5e2105f97f3f57e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < afbd40f425227e661d991757e11cc4db024e761f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b0ddff8d68f2e43857a84dce54c3deab181c8ae1 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6e80e9314f8bb52d9eabe1907698718ff01120f5 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 86d4aedcbc69c0f84551fb70f953c24e396de2d7 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b2fa1f52d22c5455217b294629346ad23a744945 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e7fb722586a2936b37bdff096c095c30ca06404d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e96a1866b40570b5950cda8602c2819189c62a48 (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (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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\"https://git.kernel.org/stable/c/b0ddff8d68f2e43857a84dce54c3deab181c8ae1\"}, {\"url\": \"https://git.kernel.org/stable/c/6e80e9314f8bb52d9eabe1907698718ff01120f5\"}, {\"url\": \"https://git.kernel.org/stable/c/86d4aedcbc69c0f84551fb70f953c24e396de2d7\"}, {\"url\": \"https://git.kernel.org/stable/c/b2fa1f52d22c5455217b294629346ad23a744945\"}, {\"url\": \"https://git.kernel.org/stable/c/e7fb722586a2936b37bdff096c095c30ca06404d\"}, {\"url\": \"https://git.kernel.org/stable/c/e96a1866b40570b5950cda8602c2819189c62a48\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nisofs: Fix out of bound access for corrupted isofs image\\n\\nWhen isofs image is suitably corrupted isofs_read_inode() can read data\\nbeyond the end of buffer. Sanity-check the directory entry length before\\nusing it.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.4.292\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.290\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.255\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.217\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.159\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.79\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.14.18\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.2\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-12-10T07:11:57.248Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47478\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-10T07:11:57.248Z\", \"dateReserved\": \"2024-05-22T06:20:56.200Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-22T08:19:31.521Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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.