gsd-2016-1576
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2016-1576",
    "description": "The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.",
    "id": "GSD-2016-1576",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-1576.html",
      "https://ubuntu.com/security/CVE-2016-1576"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-1576"
      ],
      "details": "The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program.",
      "id": "GSD-2016-1576",
      "modified": "2023-12-13T01:21:24.138425Z",
      "schema_version": "1.4.0"
    }
  },
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        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "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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      },
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          },
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          },
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          },
          {
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            "refsource": "CONFIRM",
            "url": "https://bugs.launchpad.net/bugs/1535150"
          },
          {
            "name": "[oss-security] 20160224 Overlayfs over Fuse Privilege Escalation in USERNS",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2016/02/24/8"
          },
          {
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          },
          {
            "name": "http://www.halfdog.net/Security/2016/OverlayfsOverFusePrivilegeEscalation/",
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            "url": "http://www.halfdog.net/Security/2016/OverlayfsOverFusePrivilegeEscalation/"
          },
          {
            "name": "[oss-security] 20211018 Re: CVE-2021-3847: OverlayFS - Potential Privilege Escalation using overlays copy_up",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2021/10/18/1"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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          {
            "children": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.10:*:*:*:*:*:*:*",
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            "operator": "OR"
          },
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                "cpe_name": [],
                "versionEndIncluding": "4.5.2",
                "vulnerable": true
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            }
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              "name": "https://launchpadlibrarian.net/235300093/0005-overlayfs-Be-more-careful-about-copying-up-sxid-file.patch",
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              "url": "https://launchpadlibrarian.net/235300093/0005-overlayfs-Be-more-careful-about-copying-up-sxid-file.patch"
            },
            {
              "name": "[oss-security] 20160224 Overlayfs over Fuse Privilege Escalation in USERNS",
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              ],
              "url": "http://www.openwall.com/lists/oss-security/2016/02/24/8"
            },
            {
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            },
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            },
            {
              "name": "[oss-security] 20211018 Re: CVE-2021-3847: OverlayFS - Potential Privilege Escalation using overlays copy_up",
              "refsource": "MLIST",
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                "Third Party Advisory"
              ],
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      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.2,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "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": "2022-04-18T17:59Z",
      "publishedDate": "2016-05-02T10:59Z"
    }
  }
}


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