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GSD-2016-2383

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2016-2383",
    "description": "The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.",
    "id": "GSD-2016-2383",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-2383.html",
      "https://ubuntu.com/security/CVE-2016-2383",
      "https://alas.aws.amazon.com/cve/html/CVE-2016-2383.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-2383"
      ],
      "details": "The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.",
      "id": "GSD-2016-2383",
      "modified": "2023-12-13T01:21:19.704801Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2016-2383",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "product": {
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                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
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            }
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          }
        ]
      },
      "problemtype": {
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            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
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      },
      "references": {
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          {
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          },
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          },
          {
            "name": "[oss-security] 20160214 CVE Request: Linux: Incorrect branch fixups for eBPF allow arbitrary read",
            "refsource": "MLIST",
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          },
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          },
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          },
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          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.5.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.5.0:rc1:*:*:*:*:*:*",
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                "cpe_name": [],
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              },
              {
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                "cpe_name": [],
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              }
            ],
            "operator": "OR"
          },
          {
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            "cpe_match": [
              {
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                "cpe_name": [],
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              },
              {
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                "cpe_name": [],
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      },
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            }
          ]
        },
        "problemtype": {
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                }
              ]
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              "refsource": "MLIST",
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            }
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        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.1,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-01-31T18:55Z",
      "publishedDate": "2016-04-27T17:59Z"
    }
  }
}



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