gsd-2016-9604
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.
Aliases
Aliases
CVE-2016-9604


To clipboard 

{
  "GSD": {
    "alias": "CVE-2016-9604",
    "description": "It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as \u0027.dns_resolver\u0027 in RHEL-7 or \u0027.builtin_trusted_keys\u0027 upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.",
    "id": "GSD-2016-9604",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-9604.html",
      "https://access.redhat.com/errata/RHSA-2017:2669",
      "https://access.redhat.com/errata/RHSA-2017:2077",
      "https://access.redhat.com/errata/RHSA-2017:1842",
      "https://ubuntu.com/security/CVE-2016-9604",
      "https://advisories.mageia.org/CVE-2016-9604.html",
      "https://linux.oracle.com/cve/CVE-2016-9604.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-9604"
      ],
      "details": "It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as \u0027.dns_resolver\u0027 in RHEL-7 or \u0027.builtin_trusted_keys\u0027 upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.",
      "id": "GSD-2016-9604",
      "modified": "2023-12-13T01:21:21.693606Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2016-9604",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "security",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "kernel 4.11-rc8"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "kernel"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as \u0027.dns_resolver\u0027 in RHEL-7 or \u0027.builtin_trusted_keys\u0027 upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring."
          }
        ]
      },
      "impact": {
        "cvss": [
          [
            {
              "vectorString": "4.4/CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
              "version": "3.0"
            }
          ],
          [
            {
              "vectorString": "1.2/AV:L/AC:H/Au:N/C:N/I:P/A:N",
              "version": "2.0"
            }
          ]
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-732"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f",
            "refsource": "CONFIRM",
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f"
          },
          {
            "name": "RHSA-2017:2669",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2017:2669"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604"
          },
          {
            "name": "https://bugzilla.novell.com/show_bug.cgi?id=1035576",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.novell.com/show_bug.cgi?id=1035576"
          },
          {
            "name": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html",
            "refsource": "CONFIRM",
            "url": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html"
          },
          {
            "name": "102135",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/102135"
          },
          {
            "name": "RHSA-2017:2077",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2017:2077"
          },
          {
            "name": "RHSA-2017:1842",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2017:1842"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.11:rc1:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.11:rc2:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.11:rc3:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.11:rc4:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.11:rc6:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "4.11",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.11:rc5:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:4.11:rc7:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2016-9604"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as \u0027.dns_resolver\u0027 in RHEL-7 or \u0027.builtin_trusted_keys\u0027 upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-347"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604"
            },
            {
              "name": "https://bugzilla.novell.com/show_bug.cgi?id=1035576",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.novell.com/show_bug.cgi?id=1035576"
            },
            {
              "name": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html"
            },
            {
              "name": "RHSA-2017:2669",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2017:2669"
            },
            {
              "name": "RHSA-2017:2077",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2017:2077"
            },
            {
              "name": "RHSA-2017:1842",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2017:1842"
            },
            {
              "name": "102135",
              "refsource": "BID",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securityfocus.com/bid/102135"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.1,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/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": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 0.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2019-10-09T23:20Z",
      "publishedDate": "2018-07-11T13:29Z"
    }
  }
}


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 seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.