CVE-2024-27401 (GCVE-0-2024-27401)

Vulnerability from cvelistv5 – Published: 2024-05-13 10:29 – Updated: 2026-08-05 11:29
VLAI
Title
firewire: nosy: ensure user_length is taken into account when fetching packet contents
Summary
In the Linux kernel, the following vulnerability has been resolved: firewire: nosy: ensure user_length is taken into account when fetching packet contents Ensure that packet_buffer_get respects the user_length provided. If the length of the head packet exceeds the user_length, packet_buffer_get will now return 0 to signify to the user that no data were read and a larger buffer size is required. Helps prevent user space overflows.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 286468210d83ce0ca1e37e346ed9f4457a161650 , < 67f34f093c0f7bf33f5b4ae64d3d695a3b978285 (git)
Affected: 286468210d83ce0ca1e37e346ed9f4457a161650 , < 7b8c7bd2296e95b38a6ff346242356a2e7190239 (git)
Affected: 286468210d83ce0ca1e37e346ed9f4457a161650 , < cca330c59c54207567a648357835f59df9a286bb (git)
Affected: 286468210d83ce0ca1e37e346ed9f4457a161650 , < 79f988d3ffc1aa778fc5181bdfab312e57956c6b (git)
Affected: 286468210d83ce0ca1e37e346ed9f4457a161650 , < 4ee0941da10e8fdcdb34756b877efd3282594c1f (git)
Affected: 286468210d83ce0ca1e37e346ed9f4457a161650 , < 1fe60ee709436550f8cfbab01295936b868d5baa (git)
Affected: 286468210d83ce0ca1e37e346ed9f4457a161650 , < 539d51ac48bcfcfa1b3d4a85f8df92fa22c1d41c (git)
Affected: 286468210d83ce0ca1e37e346ed9f4457a161650 , < 38762a0763c10c24a4915feee722d7aa6e73eb98 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.36
Unaffected: 0 , < 2.6.36 (semver)
Unaffected: 4.19.314 , ≤ 4.19.* (semver)
Unaffected: 5.4.276 , ≤ 5.4.* (semver)
Unaffected: 5.10.217 , ≤ 5.10.* (semver)
Unaffected: 5.15.159 , ≤ 5.15.* (semver)
Unaffected: 6.1.91 , ≤ 6.1.* (semver)
Unaffected: 6.6.31 , ≤ 6.6.* (semver)
Unaffected: 6.8.10 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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Aseg\u00farese de que paquete_buffer_get respete la longitud de usuario proporcionada. Si la longitud del paquete principal excede la longitud del usuario, paquete_buffer_get ahora devolver\u00e1 0 para indicarle al usuario que no se leyeron datos y que se requiere un tama\u00f1o de b\u00fafer mayor. 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    "redhat_vex": {
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      "current_release_date": "2026-08-04T19:06:04+00:00",
      "cve": "CVE-2024-27401",
      "id": "CVE-2024-27401",
      "initial_release_date": "2024-05-13T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: firewire: nosy: ensure user_length is taken into account when fetching packet contents",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-27401.json",
      "version": "3"
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    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-25T01:53:06Z",
      "cve": "CVE-2024-27401",
      "id": "CVE-2024-27401",
      "initial_release_date": "2024-05-14T03:32:22Z",
      "product_status:known_affected": "394",
      "product_status:recommended": "676",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-27401",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-27401.json",
      "version": "105"
    },
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Choosing the higher-severity option between L and H, an ordinary unprivileged user with the device node is sufficient.\\nUI:N - The attacker performs the `read()` themselves and needs no victim action; the overflow occurs as soon as a packet longer than the supplied buffer is dequeued. No mount, no file open by another user, no configuration change by an administrator is required.\\nS:U - The out-of-bounds write lands inside the address space of the process that issued the `read()`, and the compromised resources belong to the same security authority as the vulnerable kernel component. No VM, IOMMU, or sandbox boundary is crossed.\\nC:H - `nosy_read()` returns a length greater than the requested `count`, so a caller following the standard read idiom consumes, prints, or logs memory located beyond its own buffer \\u2014 an unbounded disclosure of adjacent process memory (heap pointers, keys, buffered data). The accompanying memory corruption is further leverageable to leak state from a privileged reader.\\nI:H - Up to roughly 8 KB of externally supplied 1394 packet bytes are written past the end of the caller\u0027s stack or heap buffer, giving a large, content-controlled out-of-bounds write. Overwriting adjacent objects, saved registers, or function pointers in a nosy consumer that customarily runs as root yields control-flow hijack and arbitrary modification.\\nA:H - The overflow reliably smashes adjacent memory and will SIGSEGV or abort the reading process (typically a root sniffer/logging daemon), and the copy can also fault mid-transfer leaving the buffer state inconsistent. Repeated triggering keeps the affected service permanently down.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"286468210d83ce0ca1e37e346ed9f4457a161650\", \"lessThan\": \"67f34f093c0f7bf33f5b4ae64d3d695a3b978285\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"286468210d83ce0ca1e37e346ed9f4457a161650\", \"lessThan\": \"7b8c7bd2296e95b38a6ff346242356a2e7190239\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"286468210d83ce0ca1e37e346ed9f4457a161650\", \"lessThan\": \"cca330c59c54207567a648357835f59df9a286bb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"286468210d83ce0ca1e37e346ed9f4457a161650\", \"lessThan\": \"79f988d3ffc1aa778fc5181bdfab312e57956c6b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"286468210d83ce0ca1e37e346ed9f4457a161650\", \"lessThan\": \"4ee0941da10e8fdcdb34756b877efd3282594c1f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"286468210d83ce0ca1e37e346ed9f4457a161650\", \"lessThan\": \"1fe60ee709436550f8cfbab01295936b868d5baa\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"286468210d83ce0ca1e37e346ed9f4457a161650\", \"lessThan\": \"539d51ac48bcfcfa1b3d4a85f8df92fa22c1d41c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"286468210d83ce0ca1e37e346ed9f4457a161650\", \"lessThan\": \"38762a0763c10c24a4915feee722d7aa6e73eb98\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/firewire/nosy.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.36\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.36\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.314\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.276\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.217\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.159\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.91\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.31\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/firewire/nosy.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/67f34f093c0f7bf33f5b4ae64d3d695a3b978285\"}, {\"url\": \"https://git.kernel.org/stable/c/7b8c7bd2296e95b38a6ff346242356a2e7190239\"}, {\"url\": \"https://git.kernel.org/stable/c/cca330c59c54207567a648357835f59df9a286bb\"}, {\"url\": \"https://git.kernel.org/stable/c/79f988d3ffc1aa778fc5181bdfab312e57956c6b\"}, {\"url\": \"https://git.kernel.org/stable/c/4ee0941da10e8fdcdb34756b877efd3282594c1f\"}, {\"url\": \"https://git.kernel.org/stable/c/1fe60ee709436550f8cfbab01295936b868d5baa\"}, {\"url\": \"https://git.kernel.org/stable/c/539d51ac48bcfcfa1b3d4a85f8df92fa22c1d41c\"}, {\"url\": \"https://git.kernel.org/stable/c/38762a0763c10c24a4915feee722d7aa6e73eb98\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfirewire: nosy: ensure user_length is taken into account when fetching packet contents\\n\\nEnsure that packet_buffer_get respects the user_length provided. If\\nthe length of the head packet exceeds the user_length, packet_buffer_get\\nwill now return 0 to signify to the user that no data were read\\nand a larger buffer size is required. Helps prevent user space overflows.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.314\", \"versionStartIncluding\": \"2.6.36\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.276\", \"versionStartIncluding\": \"2.6.36\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.217\", \"versionStartIncluding\": \"2.6.36\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.159\", \"versionStartIncluding\": \"2.6.36\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.91\", \"versionStartIncluding\": \"2.6.36\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.31\", \"versionStartIncluding\": \"2.6.36\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.10\", \"versionStartIncluding\": \"2.6.36\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"2.6.36\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T11:29:34.613Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-27401\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:29:34.613Z\", \"dateReserved\": \"2024-02-25T13:47:42.681Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-13T10:29:53.862Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.