gsd-2021-35039
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.
Aliases
Aliases
CVE-2021-35039


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-35039",
    "description": "kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.",
    "id": "GSD-2021-35039",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-35039.html",
      "https://advisories.mageia.org/CVE-2021-35039.html",
      "https://security.archlinux.org/CVE-2021-35039"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-35039"
      ],
      "details": "kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.",
      "id": "GSD-2021-35039",
      "modified": "2023-12-13T01:23:28.065931Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2021-35039",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
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              "vendor_name": "n/a"
            }
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          }
        ]
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            "refsource": "MISC",
            "url": "https://www.openwall.com/lists/oss-security/2021/07/06/3"
          },
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            "refsource": "CONFIRM",
            "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.14"
          },
          {
            "name": "[oss-security] 20210706 CVE-2021-35039: Linux kernel loading unsigned kernel modules via init_module syscall",
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            "url": "http://www.openwall.com/lists/oss-security/2021/07/06/3"
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      }
    },
    "nvd.nist.gov": {
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                "versionEndExcluding": "4.19.196",
                "versionStartIncluding": "4.15",
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              },
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                "versionStartIncluding": "5.5",
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              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.12.14",
                "versionStartIncluding": "5.11",
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              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
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            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-35039"
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        "description": {
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              "value": "kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument."
            }
          ]
        },
        "problemtype": {
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                  "value": "CWE-347"
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              "url": "https://www.openwall.com/lists/oss-security/2021/07/06/3"
            },
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              "tags": [
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              "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.14"
            },
            {
              "name": "[oss-security] 20210706 CVE-2021-35039: Linux kernel loading unsigned kernel modules via init_module syscall",
              "refsource": "MLIST",
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                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2021/07/06/3"
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.9,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-05-16T10:59Z",
      "publishedDate": "2021-07-07T01:15Z"
    }
  }
}


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