CVE-2021-47542 (GCVE-0-2021-47542)

Vulnerability from cvelistv5 – Published: 2024-05-24 15:09 – Updated: 2025-05-04 07:13
VLAI?
Title
net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings() In qlcnic_83xx_add_rings(), the indirect function of ahw->hw_ops->alloc_mbx_args will be called to allocate memory for cmd.req.arg, and there is a dereference of it in qlcnic_83xx_add_rings(), which could lead to a NULL pointer dereference on failure of the indirect function like qlcnic_83xx_alloc_mbx_args(). Fix this bug by adding a check of alloc_mbx_args(), this patch imitates the logic of mbx_cmd()'s failure handling. This bug was found by a static analyzer. The analysis employs differential checking to identify inconsistent security operations (e.g., checks or kfrees) between two code paths and confirms that the inconsistent operations are not recovered in the current function or the callers, so they constitute bugs. Note that, as a bug found by static analysis, it can be a false positive or hard to trigger. Multiple researchers have cross-reviewed the bug. Builds with CONFIG_QLCNIC=m show no new warnings, and our static analyzer no longer warns about this code.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7f9664525f9cb507de9198a395a111371413f230 , < 3a061d54e260b701b538873b43e399d9b8b83e03 (git)
Affected: 7f9664525f9cb507de9198a395a111371413f230 , < b4f217d6fcc00c3fdc0921a7691f30be7490b073 (git)
Affected: 7f9664525f9cb507de9198a395a111371413f230 , < 550658a2d61e4eaf522c8ebc7fad76dc376bfb45 (git)
Affected: 7f9664525f9cb507de9198a395a111371413f230 , < 57af54a56024435d83e44c78449513b414eb6edf (git)
Affected: 7f9664525f9cb507de9198a395a111371413f230 , < bbeb0325a7460ebf1e03f5e0bfc5c652fba9519f (git)
Affected: 7f9664525f9cb507de9198a395a111371413f230 , < 15fa12c119f869173f9b710cbe6a4a14071d2105 (git)
Affected: 7f9664525f9cb507de9198a395a111371413f230 , < c5ef33c1489b2cd74368057fa00b5d2183bb5853 (git)
Affected: 7f9664525f9cb507de9198a395a111371413f230 , < e2dabc4f7e7b60299c20a36d6a7b24ed9bf8e572 (git)
Create a notification for this product.
    Linux Linux Affected: 3.9
Unaffected: 0 , < 3.9 (semver)
Unaffected: 4.4.294 , ≤ 4.4.* (semver)
Unaffected: 4.9.292 , ≤ 4.9.* (semver)
Unaffected: 4.14.257 , ≤ 4.14.* (semver)
Unaffected: 4.19.220 , ≤ 4.19.* (semver)
Unaffected: 5.4.164 , ≤ 5.4.* (semver)
Unaffected: 5.10.84 , ≤ 5.10.* (semver)
Unaffected: 5.15.7 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47542",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-24T17:04:13.533892Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:14:29.864Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:39:59.608Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3a061d54e260b701b538873b43e399d9b8b83e03"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/b4f217d6fcc00c3fdc0921a7691f30be7490b073"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/550658a2d61e4eaf522c8ebc7fad76dc376bfb45"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/57af54a56024435d83e44c78449513b414eb6edf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/bbeb0325a7460ebf1e03f5e0bfc5c652fba9519f"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/15fa12c119f869173f9b710cbe6a4a14071d2105"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c5ef33c1489b2cd74368057fa00b5d2183bb5853"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/e2dabc4f7e7b60299c20a36d6a7b24ed9bf8e572"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3a061d54e260b701b538873b43e399d9b8b83e03",
              "status": "affected",
              "version": "7f9664525f9cb507de9198a395a111371413f230",
              "versionType": "git"
            },
            {
              "lessThan": "b4f217d6fcc00c3fdc0921a7691f30be7490b073",
              "status": "affected",
              "version": "7f9664525f9cb507de9198a395a111371413f230",
              "versionType": "git"
            },
            {
              "lessThan": "550658a2d61e4eaf522c8ebc7fad76dc376bfb45",
              "status": "affected",
              "version": "7f9664525f9cb507de9198a395a111371413f230",
              "versionType": "git"
            },
            {
              "lessThan": "57af54a56024435d83e44c78449513b414eb6edf",
              "status": "affected",
              "version": "7f9664525f9cb507de9198a395a111371413f230",
              "versionType": "git"
            },
            {
              "lessThan": "bbeb0325a7460ebf1e03f5e0bfc5c652fba9519f",
              "status": "affected",
              "version": "7f9664525f9cb507de9198a395a111371413f230",
              "versionType": "git"
            },
            {
              "lessThan": "15fa12c119f869173f9b710cbe6a4a14071d2105",
              "status": "affected",
              "version": "7f9664525f9cb507de9198a395a111371413f230",
              "versionType": "git"
            },
            {
              "lessThan": "c5ef33c1489b2cd74368057fa00b5d2183bb5853",
              "status": "affected",
              "version": "7f9664525f9cb507de9198a395a111371413f230",
              "versionType": "git"
            },
            {
              "lessThan": "e2dabc4f7e7b60299c20a36d6a7b24ed9bf8e572",
              "status": "affected",
              "version": "7f9664525f9cb507de9198a395a111371413f230",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.9"
            },
            {
              "lessThan": "3.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.4.*",
              "status": "unaffected",
              "version": "4.4.294",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.292",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.257",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.220",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.164",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.84",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.4.294",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.9.292",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.257",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.220",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.164",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.84",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.7",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16",
                  "versionStartIncluding": "3.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()\n\nIn qlcnic_83xx_add_rings(), the indirect function of\nahw-\u003ehw_ops-\u003ealloc_mbx_args will be called to allocate memory for\ncmd.req.arg, and there is a dereference of it in qlcnic_83xx_add_rings(),\nwhich could lead to a NULL pointer dereference on failure of the\nindirect function like qlcnic_83xx_alloc_mbx_args().\n\nFix this bug by adding a check of alloc_mbx_args(), this patch\nimitates the logic of mbx_cmd()\u0027s failure handling.\n\nThis bug was found by a static analyzer. The analysis employs\ndifferential checking to identify inconsistent security operations\n(e.g., checks or kfrees) between two code paths and confirms that the\ninconsistent operations are not recovered in the current function or\nthe callers, so they constitute bugs.\n\nNote that, as a bug found by static analysis, it can be a false\npositive or hard to trigger. Multiple researchers have cross-reviewed\nthe bug.\n\nBuilds with CONFIG_QLCNIC=m show no new warnings, and our\nstatic analyzer no longer warns about this code."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:13:11.022Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3a061d54e260b701b538873b43e399d9b8b83e03"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4f217d6fcc00c3fdc0921a7691f30be7490b073"
        },
        {
          "url": "https://git.kernel.org/stable/c/550658a2d61e4eaf522c8ebc7fad76dc376bfb45"
        },
        {
          "url": "https://git.kernel.org/stable/c/57af54a56024435d83e44c78449513b414eb6edf"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbeb0325a7460ebf1e03f5e0bfc5c652fba9519f"
        },
        {
          "url": "https://git.kernel.org/stable/c/15fa12c119f869173f9b710cbe6a4a14071d2105"
        },
        {
          "url": "https://git.kernel.org/stable/c/c5ef33c1489b2cd74368057fa00b5d2183bb5853"
        },
        {
          "url": "https://git.kernel.org/stable/c/e2dabc4f7e7b60299c20a36d6a7b24ed9bf8e572"
        }
      ],
      "title": "net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47542",
    "datePublished": "2024-05-24T15:09:48.578Z",
    "dateReserved": "2024-05-24T15:02:54.829Z",
    "dateUpdated": "2025-05-04T07:13:11.022Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/3a061d54e260b701b538873b43e399d9b8b83e03\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/b4f217d6fcc00c3fdc0921a7691f30be7490b073\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/550658a2d61e4eaf522c8ebc7fad76dc376bfb45\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/57af54a56024435d83e44c78449513b414eb6edf\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/bbeb0325a7460ebf1e03f5e0bfc5c652fba9519f\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/15fa12c119f869173f9b710cbe6a4a14071d2105\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/c5ef33c1489b2cd74368057fa00b5d2183bb5853\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/e2dabc4f7e7b60299c20a36d6a7b24ed9bf8e572\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:39:59.608Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47542\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-05-24T17:04:13.533892Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-05-24T17:04:18.582Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"7f9664525f9cb507de9198a395a111371413f230\", \"lessThan\": \"3a061d54e260b701b538873b43e399d9b8b83e03\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7f9664525f9cb507de9198a395a111371413f230\", \"lessThan\": \"b4f217d6fcc00c3fdc0921a7691f30be7490b073\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7f9664525f9cb507de9198a395a111371413f230\", \"lessThan\": \"550658a2d61e4eaf522c8ebc7fad76dc376bfb45\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7f9664525f9cb507de9198a395a111371413f230\", \"lessThan\": \"57af54a56024435d83e44c78449513b414eb6edf\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7f9664525f9cb507de9198a395a111371413f230\", \"lessThan\": \"bbeb0325a7460ebf1e03f5e0bfc5c652fba9519f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7f9664525f9cb507de9198a395a111371413f230\", \"lessThan\": \"15fa12c119f869173f9b710cbe6a4a14071d2105\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7f9664525f9cb507de9198a395a111371413f230\", \"lessThan\": \"c5ef33c1489b2cd74368057fa00b5d2183bb5853\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7f9664525f9cb507de9198a395a111371413f230\", \"lessThan\": \"e2dabc4f7e7b60299c20a36d6a7b24ed9bf8e572\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.9\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.9\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.4.294\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.4.*\"}, {\"status\": \"unaffected\", \"version\": \"4.9.292\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.257\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.220\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.164\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.84\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/3a061d54e260b701b538873b43e399d9b8b83e03\"}, {\"url\": \"https://git.kernel.org/stable/c/b4f217d6fcc00c3fdc0921a7691f30be7490b073\"}, {\"url\": \"https://git.kernel.org/stable/c/550658a2d61e4eaf522c8ebc7fad76dc376bfb45\"}, {\"url\": \"https://git.kernel.org/stable/c/57af54a56024435d83e44c78449513b414eb6edf\"}, {\"url\": \"https://git.kernel.org/stable/c/bbeb0325a7460ebf1e03f5e0bfc5c652fba9519f\"}, {\"url\": \"https://git.kernel.org/stable/c/15fa12c119f869173f9b710cbe6a4a14071d2105\"}, {\"url\": \"https://git.kernel.org/stable/c/c5ef33c1489b2cd74368057fa00b5d2183bb5853\"}, {\"url\": \"https://git.kernel.org/stable/c/e2dabc4f7e7b60299c20a36d6a7b24ed9bf8e572\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()\\n\\nIn qlcnic_83xx_add_rings(), the indirect function of\\nahw-\u003ehw_ops-\u003ealloc_mbx_args will be called to allocate memory for\\ncmd.req.arg, and there is a dereference of it in qlcnic_83xx_add_rings(),\\nwhich could lead to a NULL pointer dereference on failure of the\\nindirect function like qlcnic_83xx_alloc_mbx_args().\\n\\nFix this bug by adding a check of alloc_mbx_args(), this patch\\nimitates the logic of mbx_cmd()\u0027s failure handling.\\n\\nThis bug was found by a static analyzer. The analysis employs\\ndifferential checking to identify inconsistent security operations\\n(e.g., checks or kfrees) between two code paths and confirms that the\\ninconsistent operations are not recovered in the current function or\\nthe callers, so they constitute bugs.\\n\\nNote that, as a bug found by static analysis, it can be a false\\npositive or hard to trigger. Multiple researchers have cross-reviewed\\nthe bug.\\n\\nBuilds with CONFIG_QLCNIC=m show no new warnings, and our\\nstatic analyzer no longer warns about this code.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.4.294\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.292\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.257\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.220\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.164\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.84\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.7\", \"versionStartIncluding\": \"3.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16\", \"versionStartIncluding\": \"3.9\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:13:11.022Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47542\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:13:11.022Z\", \"dateReserved\": \"2024-05-24T15:02:54.829Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-24T15:09:48.578Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.