CVE-2023-52464 (GCVE-0-2023-52464)
Vulnerability from cvelistv5
Published
2024-02-23 14:46
Modified
2025-05-04 07:37
Severity ?
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. ]
References
Impacted products
Vendor Product Version
Linux Linux Version: 41003396f932d7f027725c7acebb6a7caa41dc3e
Version: 41003396f932d7f027725c7acebb6a7caa41dc3e
Version: 41003396f932d7f027725c7acebb6a7caa41dc3e
Version: 41003396f932d7f027725c7acebb6a7caa41dc3e
Version: 41003396f932d7f027725c7acebb6a7caa41dc3e
Version: 41003396f932d7f027725c7acebb6a7caa41dc3e
Version: 41003396f932d7f027725c7acebb6a7caa41dc3e
Version: 41003396f932d7f027725c7acebb6a7caa41dc3e
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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\": \"2025-05-04T07:37:16.530Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52464\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:37:16.530Z\", \"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": "5.1"
    }
  }
}


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