gsd-2023-52618
Vulnerability from gsd
Modified
2024-03-07 06:01
Details
In the Linux kernel, the following vulnerability has been resolved: block/rnbd-srv: Check for unlikely string overflow Since "dev_search_path" can technically be as large as PATH_MAX, there was a risk of truncation when copying it and a second string into "full_path" since it was also PATH_MAX sized. The W=1 builds were reporting this warning: drivers/block/rnbd/rnbd-srv.c: In function 'process_msg_open.isra': drivers/block/rnbd/rnbd-srv.c:616:51: warning: '%s' directive output may be truncated writing up to 254 bytes into a region of size between 0 and 4095 [-Wformat-truncation=] 616 | snprintf(full_path, PATH_MAX, "%s/%s", | ^~ In function 'rnbd_srv_get_full_path', inlined from 'process_msg_open.isra' at drivers/block/rnbd/rnbd-srv.c:721:14: drivers/block/rnbd/rnbd-srv.c:616:17: note: 'snprintf' output between 2 and 4351 bytes into a destination of size 4096 616 | snprintf(full_path, PATH_MAX, "%s/%s", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 617 | dev_search_path, dev_name); | ~~~~~~~~~~~~~~~~~~~~~~~~~~ To fix this, unconditionally check for truncation (as was already done for the case where "%SESSNAME%" was present).
Aliases


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{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-52618"
      ],
      "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock/rnbd-srv: Check for unlikely string overflow\n\nSince \"dev_search_path\" can technically be as large as PATH_MAX,\nthere was a risk of truncation when copying it and a second string\ninto \"full_path\" since it was also PATH_MAX sized. The W=1 builds were\nreporting this warning:\n\ndrivers/block/rnbd/rnbd-srv.c: In function \u0027process_msg_open.isra\u0027:\ndrivers/block/rnbd/rnbd-srv.c:616:51: warning: \u0027%s\u0027 directive output may be truncated writing up to 254 bytes into a region of size between 0 and 4095 [-Wformat-truncation=]\n  616 |                 snprintf(full_path, PATH_MAX, \"%s/%s\",\n      |                                                   ^~\nIn function \u0027rnbd_srv_get_full_path\u0027,\n    inlined from \u0027process_msg_open.isra\u0027 at drivers/block/rnbd/rnbd-srv.c:721:14: drivers/block/rnbd/rnbd-srv.c:616:17: note: \u0027snprintf\u0027 output between 2 and 4351 bytes into a destination of size 4096\n  616 |                 snprintf(full_path, PATH_MAX, \"%s/%s\",\n      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n  617 |                          dev_search_path, dev_name);\n      |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nTo fix this, unconditionally check for truncation (as was already done\nfor the case where \"%SESSNAME%\" was present).",
      "id": "GSD-2023-52618",
      "modified": "2024-03-07T06:01:45.487581Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@kernel.org",
        "ID": "CVE-2023-52618",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Linux",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "1da177e4c3f4",
                          "version_value": "95bc866c1197"
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected",
                            "versions": [
                              {
                                "lessThanOrEqual": "5.10.*",
                                "status": "unaffected",
                                "version": "5.10.210",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "5.15.*",
                                "status": "unaffected",
                                "version": "5.15.149",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.1.*",
                                "status": "unaffected",
                                "version": "6.1.77",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.6.*",
                                "status": "unaffected",
                                "version": "6.6.16",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.7.*",
                                "status": "unaffected",
                                "version": "6.7.4",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "*",
                                "status": "unaffected",
                                "version": "6.8",
                                "versionType": "original_commit_for_fix"
                              }
                            ]
                          }
                        }
                      ]
                    }
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                ]
              },
              "vendor_name": "Linux"
            }
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        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock/rnbd-srv: Check for unlikely string overflow\n\nSince \"dev_search_path\" can technically be as large as PATH_MAX,\nthere was a risk of truncation when copying it and a second string\ninto \"full_path\" since it was also PATH_MAX sized. The W=1 builds were\nreporting this warning:\n\ndrivers/block/rnbd/rnbd-srv.c: In function \u0027process_msg_open.isra\u0027:\ndrivers/block/rnbd/rnbd-srv.c:616:51: warning: \u0027%s\u0027 directive output may be truncated writing up to 254 bytes into a region of size between 0 and 4095 [-Wformat-truncation=]\n  616 |                 snprintf(full_path, PATH_MAX, \"%s/%s\",\n      |                                                   ^~\nIn function \u0027rnbd_srv_get_full_path\u0027,\n    inlined from \u0027process_msg_open.isra\u0027 at drivers/block/rnbd/rnbd-srv.c:721:14: drivers/block/rnbd/rnbd-srv.c:616:17: note: \u0027snprintf\u0027 output between 2 and 4351 bytes into a destination of size 4096\n  616 |                 snprintf(full_path, PATH_MAX, \"%s/%s\",\n      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n  617 |                          dev_search_path, dev_name);\n      |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nTo fix this, unconditionally check for truncation (as was already done\nfor the case where \"%SESSNAME%\" was present)."
          }
        ]
      },
      "generator": {
        "engine": "bippy-8df59b4913de"
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://git.kernel.org/stable/c/95bc866c11974d3e4a9d922275ea8127ff809cf7",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/95bc866c11974d3e4a9d922275ea8127ff809cf7"
          },
          {
            "name": "https://git.kernel.org/stable/c/f6abd5e17da33eba15df2bddc93413e76c2b55f7",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/f6abd5e17da33eba15df2bddc93413e76c2b55f7"
          },
          {
            "name": "https://git.kernel.org/stable/c/af7bbdac89739e2e7380387fda598848d3b7010f",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/af7bbdac89739e2e7380387fda598848d3b7010f"
          },
          {
            "name": "https://git.kernel.org/stable/c/5b9ea86e662035a886ccb5c76d56793cba618827",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/5b9ea86e662035a886ccb5c76d56793cba618827"
          },
          {
            "name": "https://git.kernel.org/stable/c/a2c6206f18104fba7f887bf4dbbfe4c41adc4339",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/a2c6206f18104fba7f887bf4dbbfe4c41adc4339"
          },
          {
            "name": "https://git.kernel.org/stable/c/9e4bf6a08d1e127bcc4bd72557f2dfafc6bc7f41",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/9e4bf6a08d1e127bcc4bd72557f2dfafc6bc7f41"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock/rnbd-srv: Check for unlikely string overflow\n\nSince \"dev_search_path\" can technically be as large as PATH_MAX,\nthere was a risk of truncation when copying it and a second string\ninto \"full_path\" since it was also PATH_MAX sized. The W=1 builds were\nreporting this warning:\n\ndrivers/block/rnbd/rnbd-srv.c: In function \u0027process_msg_open.isra\u0027:\ndrivers/block/rnbd/rnbd-srv.c:616:51: warning: \u0027%s\u0027 directive output may be truncated writing up to 254 bytes into a region of size between 0 and 4095 [-Wformat-truncation=]\n  616 |                 snprintf(full_path, PATH_MAX, \"%s/%s\",\n      |                                                   ^~\nIn function \u0027rnbd_srv_get_full_path\u0027,\n    inlined from \u0027process_msg_open.isra\u0027 at drivers/block/rnbd/rnbd-srv.c:721:14: drivers/block/rnbd/rnbd-srv.c:616:17: note: \u0027snprintf\u0027 output between 2 and 4351 bytes into a destination of size 4096\n  616 |                 snprintf(full_path, PATH_MAX, \"%s/%s\",\n      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n  617 |                          dev_search_path, dev_name);\n      |                          ~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nTo fix this, unconditionally check for truncation (as was already done\nfor the case where \"%SESSNAME%\" was present)."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: block/rnbd-srv: Comprueba si hay un desbordamiento de cadena improbable. Dado que \"dev_search_path\" t\u00e9cnicamente puede ser tan grande como PATH_MAX, exist\u00eda el riesgo de truncamiento al copiarlo y una segunda cadena en \" full_path\" ya que tambi\u00e9n ten\u00eda un tama\u00f1o PATH_MAX. Las compilaciones W=1 informaban esta advertencia: drivers/block/rnbd/rnbd-srv.c: En funci\u00f3n \u0027process_msg_open.isra\u0027: drivers/block/rnbd/rnbd-srv.c:616:51: advertencia: \u0027% La salida de la directiva s se puede truncar escribiendo hasta 254 bytes en una regi\u00f3n de tama\u00f1o entre 0 y 4095 [-Wformat-truncation=] 616 | snprintf(full_path, PATH_MAX, \"%s/%s\", | ^~ En la funci\u00f3n \u0027rnbd_srv_get_full_path\u0027, insertada desde \u0027process_msg_open.isra\u0027 en drivers/block/rnbd/rnbd-srv.c:721:14: drivers/block /rnbd/rnbd-srv.c:616:17: nota: \u0027snprintf\u0027 genera entre 2 y 4351 bytes en un destino de tama\u00f1o 4096 616 | snprintf(full_path, PATH_MAX, \"%s/%s\", | ^~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 617 | dev_search_path, dev_name); | ~~~~~~~ ~~~~~~~~~~~~~~~~~~~ Para solucionar este problema, verifique incondicionalmente el truncamiento (como ya se hizo en el caso en el que \"%SESSNAME%\" estaba presente)."
          }
        ],
        "id": "CVE-2023-52618",
        "lastModified": "2024-03-18T12:38:25.490",
        "metrics": {},
        "published": "2024-03-18T11:15:09.110",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/5b9ea86e662035a886ccb5c76d56793cba618827"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/95bc866c11974d3e4a9d922275ea8127ff809cf7"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/9e4bf6a08d1e127bcc4bd72557f2dfafc6bc7f41"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/a2c6206f18104fba7f887bf4dbbfe4c41adc4339"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/af7bbdac89739e2e7380387fda598848d3b7010f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f6abd5e17da33eba15df2bddc93413e76c2b55f7"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}


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