{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2020-1968",
        "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
        "assignerShortName": "openssl",
        "datePublished": "2020-09-09T13:50:12.423Z",
        "dateUpdated": "2026-04-16T14:10:35.131Z",
        "dateReserved": "2019-12-03T00:00:00.000Z"
    },
    "containers": {
        "cna": {
            "title": "Raccoon attack",
            "datePublic": "2020-09-09T00:00:00.000Z",
            "providerMetadata": {
                "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
                "shortName": "openssl",
                "dateUpdated": "2022-10-16T00:00:00.000Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH) based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ciphersuites. This issue affects OpenSSL 1.0.2 which is out of support and no longer receiving public updates. OpenSSL 1.1.1 is not vulnerable to this issue. Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v)."
                }
            ],
            "affected": [
                {
                    "vendor": "OpenSSL",
                    "product": "OpenSSL",
                    "versions": [
                        {
                            "version": "Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v)",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://www.openssl.org/news/secadv/20200909.txt"
                },
                {
                    "name": "USN-4504-1",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://usn.ubuntu.com/4504-1/"
                },
                {
                    "name": "[debian-lts-announce] 20200925 [SECURITY] [DLA 2378-1] openssl1.0 security update",
                    "tags": [
                        "mailing-list"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00016.html"
                },
                {
                    "url": "https://www.oracle.com/security-alerts/cpujan2021.html"
                },
                {
                    "url": "https://security.netapp.com/advisory/ntap-20200911-0004/"
                },
                {
                    "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
                },
                {
                    "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
                },
                {
                    "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
                },
                {
                    "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
                },
                {
                    "name": "GLSA-202210-02",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://security.gentoo.org/glsa/202210-02"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Robert Merget, Marcus Brinkmann, Nimrod Aviram, and Juraj Somorovsky"
                }
            ],
            "metrics": [
                {
                    "other": {
                        "type": "unknown",
                        "content": {
                            "lang": "eng",
                            "url": "https://www.openssl.org/policies/secpolicy.html#Low",
                            "value": "Low"
                        }
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "text",
                            "lang": "en",
                            "description": "Protocol flaw"
                        }
                    ]
                }
            ]
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T06:54:00.367Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://www.openssl.org/news/secadv/20200909.txt",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "name": "USN-4504-1",
                        "tags": [
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                            "x_transferred"
                        ],
                        "url": "https://usn.ubuntu.com/4504-1/"
                    },
                    {
                        "name": "[debian-lts-announce] 20200925 [SECURITY] [DLA 2378-1] openssl1.0 security update",
                        "tags": [
                            "mailing-list",
                            "x_transferred"
                        ],
                        "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00016.html"
                    },
                    {
                        "url": "https://www.oracle.com/security-alerts/cpujan2021.html",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://security.netapp.com/advisory/ntap-20200911-0004/",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.oracle.com/security-alerts/cpuApr2021.html",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.oracle.com//security-alerts/cpujul2021.html",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.oracle.com/security-alerts/cpuoct2021.html",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.oracle.com/security-alerts/cpuapr2022.html",
                        "tags": [
                            "x_transferred"
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                    },
                    {
                        "name": "GLSA-202210-02",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://security.gentoo.org/glsa/202210-02"
                    }
                ]
            },
            {
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-203",
                                "lang": "en",
                                "description": "CWE-203 Observable Discrepancy"
                            }
                        ]
                    }
                ],
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 3.7,
                            "attackVector": "NETWORK",
                            "baseSeverity": "LOW",
                            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "HIGH",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "LOW"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-04-16T14:10:30.475111Z",
                                "id": "CVE-2020-1968",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-04-16T14:10:35.131Z"
                }
            }
        ]
    }
}