gsd-2021-23134
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.
Aliases
Aliases
CVE-2021-23134


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-23134",
    "description": "Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.",
    "id": "GSD-2021-23134",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-23134.html",
      "https://ubuntu.com/security/CVE-2021-23134",
      "https://security.archlinux.org/CVE-2021-23134",
      "https://linux.oracle.com/cve/CVE-2021-23134.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-23134"
      ],
      "details": "Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.",
      "id": "GSD-2021-23134",
      "modified": "2023-12-13T01:23:30.310931Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
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        "DATE_PUBLIC": "2021-05-11T11:14:00.000Z",
        "ID": "CVE-2021-23134",
        "STATE": "PUBLIC",
        "TITLE": "Linux kernel llcp_sock_bind/connect use-after-free"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Linux Kernel",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_value": "5.12.4"
                        }
                      ]
                    }
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              },
              "vendor_name": "Linux Kernel"
            }
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        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Nadav Markus from Palo Alto Networks"
        },
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          "value": "Or Cohen from Palo Alto Networks"
        }
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          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
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          "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"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-416 Use After Free"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d",
            "refsource": "MISC",
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          },
          {
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          },
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          },
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            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20210625-0007/"
          }
        ]
      },
      "solution": [
        {
          "lang": "eng",
          "value": "Apply the following patch:\nhttps://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "5.12.4",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
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                "cpe_name": [],
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            ],
            "operator": "OR"
          },
          {
            "children": [],
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              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
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        ]
      },
      "cve": {
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          "ASSIGNER": "psirt@paloaltonetworks.com",
          "ID": "CVE-2021-23134"
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        "description": {
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              "value": "Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability."
            }
          ]
        },
        "problemtype": {
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            {
              "description": [
                {
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                  "value": "CWE-416"
                }
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        "references": {
          "reference_data": [
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              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/"
            },
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            },
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.6,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
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            "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": "2021-09-07T22:06Z",
      "publishedDate": "2021-05-12T23:15Z"
    }
  }
}


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