gsd-2018-16868
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.
Aliases
Aliases
CVE-2018-16868


To clipboard 

{
  "GSD": {
    "alias": "CVE-2018-16868",
    "description": "A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.",
    "id": "GSD-2018-16868",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-16868.html",
      "https://advisories.mageia.org/CVE-2018-16868.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-16868"
      ],
      "details": "A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server.",
      "id": "GSD-2018-16868",
      "modified": "2023-12-13T01:22:26.168084Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2018-16868",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "gnutls",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "[UNKNOWN]"
            }
          ]
        }
      },
      "data_format": "MITRE",
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      "data_version": "4.0",
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            "value": "A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.0"
          }
        ]
      },
      "problemtype": {
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            "description": [
              {
                "cweId": "CWE-203",
                "lang": "eng",
                "value": "CWE-203"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "http://cat.eyalro.net/",
            "refsource": "MISC",
            "url": "http://cat.eyalro.net/"
          },
          {
            "name": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.html",
            "refsource": "MISC",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.html"
          },
          {
            "name": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00068.html",
            "refsource": "MISC",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00068.html"
          },
          {
            "name": "http://www.securityfocus.com/bid/106080",
            "refsource": "MISC",
            "url": "http://www.securityfocus.com/bid/106080"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16868",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16868"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "3.6.4",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2018-16868"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "A Bleichenbacher type side-channel based padding oracle attack was found in the way gnutls handles verification of RSA decrypted PKCS#1 v1.5 data. An attacker who is able to run process on the same physical core as the victim process, could use this to extract plaintext or in some cases downgrade any TLS connections to a vulnerable server."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-203"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16868",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16868"
            },
            {
              "name": "http://cat.eyalro.net/",
              "refsource": "MISC",
              "tags": [
                "Technical Description",
                "Third Party Advisory"
              ],
              "url": "http://cat.eyalro.net/"
            },
            {
              "name": "106080",
              "refsource": "BID",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securityfocus.com/bid/106080"
            },
            {
              "name": "openSUSE-SU-2019:1353",
              "refsource": "SUSE",
              "tags": [
                "Broken Link",
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.html"
            },
            {
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              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00068.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 3.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 0.4,
          "impactScore": 4.7
        }
      },
      "lastModifiedDate": "2022-11-30T21:20Z",
      "publishedDate": "2018-12-03T14:29Z"
    }
  }
}


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