gsd-2020-1763
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.
Aliases
Aliases
CVE-2020-1763


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-1763",
    "description": "An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.",
    "id": "GSD-2020-1763",
    "references": [
      "https://www.debian.org/security/2020/dsa-4684",
      "https://access.redhat.com/errata/RHSA-2020:2071",
      "https://access.redhat.com/errata/RHSA-2020:2070",
      "https://access.redhat.com/errata/RHSA-2020:2069",
      "https://advisories.mageia.org/CVE-2020-1763.html",
      "https://linux.oracle.com/cve/CVE-2020-1763.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-1763"
      ],
      "details": "An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash.",
      "id": "GSD-2020-1763",
      "modified": "2023-12-13T01:21:58.332889Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2020-1763",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "libreswan",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "from versions 3.27 till 3.31"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "the libreswan Project"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash."
          }
        ]
      },
      "impact": {
        "cvss": [
          [
            {
              "vectorString": "7.5/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.0"
            }
          ]
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-125"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt",
            "refsource": "CONFIRM",
            "url": "https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1813329",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1813329"
          },
          {
            "name": "https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8",
            "refsource": "CONFIRM",
            "url": "https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8"
          },
          {
            "name": "DSA-4684",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2020/dsa-4684"
          },
          {
            "name": "GLSA-202007-21",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202007-21"
          },
          {
            "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf",
            "refsource": "CONFIRM",
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf"
          },
          {
            "name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04",
            "refsource": "MISC",
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:libreswan:libreswan:3.5:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:libreswan:libreswan:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "3.31",
                "versionStartIncluding": "3.27",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2020-1763"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "An out-of-bounds buffer read flaw was found in the pluto daemon of libreswan from versions 3.27 till 3.31 where, an unauthenticated attacker could use this flaw to crash libreswan by sending specially-crafted IKEv1 Informational Exchange packets. The daemon respawns after the crash."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-125"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1763"
            },
            {
              "name": "https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/libreswan/libreswan/commit/471a3e41a449d7c753bc4edbba4239501bb62ba8"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1813329",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1813329"
            },
            {
              "name": "https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://libreswan.org/security/CVE-2020-1763/CVE-2020-1763.txt"
            },
            {
              "name": "DSA-4684",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2020/dsa-4684"
            },
            {
              "name": "GLSA-202007-21",
              "refsource": "GENTOO",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.gentoo.org/glsa/202007-21"
            },
            {
              "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf"
            },
            {
              "name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory",
                "US Government Resource"
              ],
              "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-05-05T13:41Z",
      "publishedDate": "2020-05-12T14:15Z"
    }
  }
}


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