CVE-2023-52464 (GCVE-0-2023-52464)

Vulnerability from cvelistv5 – Published: 2024-02-23 14:46 – Updated: 2026-05-11 19:27
VLAI
Title
EDAC/thunderx: Fix possible out-of-bounds string access
Summary
In the Linux kernel, the following vulnerability has been resolved: EDAC/thunderx: Fix possible out-of-bounds string access Enabling -Wstringop-overflow globally exposes a warning for a common bug in the usage of strncat(): drivers/edac/thunderx_edac.c: In function 'thunderx_ocx_com_threaded_isr': drivers/edac/thunderx_edac.c:1136:17: error: 'strncat' specified bound 1024 equals destination size [-Werror=stringop-overflow=] 1136 | strncat(msg, other, OCX_MESSAGE_SIZE); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ... 1145 | strncat(msg, other, OCX_MESSAGE_SIZE); ... 1150 | strncat(msg, other, OCX_MESSAGE_SIZE); ... Apparently the author of this driver expected strncat() to behave the way that strlcat() does, which uses the size of the destination buffer as its third argument rather than the length of the source buffer. The result is that there is no check on the size of the allocated buffer. Change it to strlcat(). [ bp: Trim compiler output, fixup commit message. ]
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 41003396f932d7f027725c7acebb6a7caa41dc3e , < 71c17ee02538802ceafc830f0736aa35b564e601 (git)
Affected: 41003396f932d7f027725c7acebb6a7caa41dc3e , < 5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6 (git)
Affected: 41003396f932d7f027725c7acebb6a7caa41dc3e , < 6aa7865ba7ff7f0ede0035180fb3b9400ceb405a (git)
Affected: 41003396f932d7f027725c7acebb6a7caa41dc3e , < 700cf4bead80fac994dcc43ae1ca5d86d8959b21 (git)
Affected: 41003396f932d7f027725c7acebb6a7caa41dc3e , < 9dbac9fdae6e3b411fc4c3fca3bf48f70609c398 (git)
Affected: 41003396f932d7f027725c7acebb6a7caa41dc3e , < e1c86511241588efffaa49556196f09a498d5057 (git)
Affected: 41003396f932d7f027725c7acebb6a7caa41dc3e , < 426fae93c01dffa379225eb2bd4d3cdc42c6eec5 (git)
Affected: 41003396f932d7f027725c7acebb6a7caa41dc3e , < 475c58e1a471e9b873e3e39958c64a2d278275c8 (git)
Create a notification for this product.
Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 4.19.306 , ≤ 4.19.* (semver)
Unaffected: 5.4.268 , ≤ 5.4.* (semver)
Unaffected: 5.10.209 , ≤ 5.10.* (semver)
Unaffected: 5.15.148 , ≤ 5.15.* (semver)
Unaffected: 6.1.75 , ≤ 6.1.* (semver)
Unaffected: 6.6.14 , ≤ 6.6.* (semver)
Unaffected: 6.7.2 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
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The\\nresult is that there is no check on the size of the allocated buffer.\\n\\nChange it to strlcat().\\n\\n  [ bp: Trim compiler output, fixup commit message. ]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: EDAC/thunderx: corrige un posible acceso a cadenas fuera de los l\u00edmites Al habilitar -Wstringop-overflow globalmente se expone una advertencia para un error com\u00fan en el uso de strncat(): drivers/edac/ thunderx_edac.c: En la funci\u00f3n \u0027thunderx_ocx_com_threaded_isr\u0027: drivers/edac/thunderx_edac.c:1136:17: error: \u0027strncat\u0027 el l\u00edmite especificado 1024 es igual al tama\u00f1o de destino [-Werror=stringop-overflow=] 1136 | strncat(msj, otro, OCX_MESSAGE_SIZE); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ... 1145 | strncat(msj, otro, OCX_MESSAGE_SIZE); ... 1150 | strncat(msj, otro, OCX_MESSAGE_SIZE); ... Aparentemente, el autor de este controlador esperaba que strncat() se comportara de la manera que lo hace strlcat(), que utiliza el tama\u00f1o del b\u00fafer de destino como tercer argumento en lugar de la longitud del b\u00fafer de origen. El resultado es que no se comprueba el tama\u00f1o del b\u00fafer asignado. C\u00e1mbielo a strlcat(). [bp: recortar la salida del compilador, mensaje de confirmaci\u00f3n de reparaci\u00f3n. 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\"programFiles\": [\"drivers/edac/thunderx_edac.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/71c17ee02538802ceafc830f0736aa35b564e601\"}, {\"url\": \"https://git.kernel.org/stable/c/5da3b6e7196f0b4f3728e4e25eb20233a9ddfaf6\"}, {\"url\": \"https://git.kernel.org/stable/c/6aa7865ba7ff7f0ede0035180fb3b9400ceb405a\"}, {\"url\": \"https://git.kernel.org/stable/c/700cf4bead80fac994dcc43ae1ca5d86d8959b21\"}, {\"url\": \"https://git.kernel.org/stable/c/9dbac9fdae6e3b411fc4c3fca3bf48f70609c398\"}, {\"url\": \"https://git.kernel.org/stable/c/e1c86511241588efffaa49556196f09a498d5057\"}, {\"url\": \"https://git.kernel.org/stable/c/426fae93c01dffa379225eb2bd4d3cdc42c6eec5\"}, {\"url\": \"https://git.kernel.org/stable/c/475c58e1a471e9b873e3e39958c64a2d278275c8\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nEDAC/thunderx: Fix possible out-of-bounds string access\\n\\nEnabling -Wstringop-overflow globally exposes a warning for a common bug\\nin the usage of strncat():\\n\\n  drivers/edac/thunderx_edac.c: In function \u0027thunderx_ocx_com_threaded_isr\u0027:\\n  drivers/edac/thunderx_edac.c:1136:17: error: \u0027strncat\u0027 specified bound 1024 equals destination size [-Werror=stringop-overflow=]\\n   1136 |                 strncat(msg, other, OCX_MESSAGE_SIZE);\\n        |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\n   ...\\n   1145 |                                 strncat(msg, other, OCX_MESSAGE_SIZE);\\n   ...\\n   1150 |                                 strncat(msg, other, OCX_MESSAGE_SIZE);\\n\\n   ...\\n\\nApparently the author of this driver expected strncat() to behave the\\nway that strlcat() does, which uses the size of the destination buffer\\nas its third argument rather than the length of the source buffer. The\\nresult is that there is no check on the size of the allocated buffer.\\n\\nChange it to strlcat().\\n\\n  [ bp: Trim compiler output, fixup commit message. ]\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.306\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.268\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.209\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.148\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.75\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.14\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.2\", \"versionStartIncluding\": \"4.12\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8\", \"versionStartIncluding\": \"4.12\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:27:50.498Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52464\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:27:50.498Z\", \"dateReserved\": \"2024-02-20T12:30:33.296Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-23T14:46:24.150Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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.