CVE-2019-1549
Vulnerability from cvelistv5
Published
2019-09-10 16:58
Modified
2024-09-16 22:56
Severity ?
Summary
Fork Protection
References
openssl-security@openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be
openssl-security@openssl.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/
openssl-security@openssl.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/
openssl-security@openssl.orghttps://seclists.org/bugtraq/2019/Oct/1
openssl-security@openssl.orghttps://security.netapp.com/advisory/ntap-20190919-0002/
openssl-security@openssl.orghttps://support.f5.com/csp/article/K44070243
openssl-security@openssl.orghttps://support.f5.com/csp/article/K44070243?utm_source=f5support&amp%3Butm_medium=RSS
openssl-security@openssl.orghttps://usn.ubuntu.com/4376-1/
openssl-security@openssl.orghttps://www.debian.org/security/2019/dsa-4539
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20190910.txtVendor Advisory
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpuapr2020.html
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpujan2020.html
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpujul2020.html
openssl-security@openssl.orghttps://www.oracle.com/security-alerts/cpuoct2020.html
openssl-security@openssl.orghttps://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Impacted products
OpenSSLOpenSSL
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T18:20:27.666Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "FEDORA-2019-d15aac6c4e",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/"
          },
          {
            "name": "FEDORA-2019-d51641f152",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/"
          },
          {
            "name": "20191001 [SECURITY] [DSA 4539-1] openssl security update",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "https://seclists.org/bugtraq/2019/Oct/1"
          },
          {
            "name": "DSA-4539",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2019/dsa-4539"
          },
          {
            "name": "USN-4376-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4376-1/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujan2020.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.openssl.org/news/secadv/20190910.txt"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20190919-0002/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.f5.com/csp/article/K44070243"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://support.f5.com/csp/article/K44070243?utm_source=f5support\u0026amp%3Butm_medium=RSS"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "OpenSSL",
          "vendor": "OpenSSL",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c)"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Matt Caswell"
        }
      ],
      "datePublic": "2019-09-10T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c)."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "lang": "eng",
              "url": "https://www.openssl.org/policies/secpolicy.html#Low",
              "value": "Low"
            },
            "type": "unknown"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Random Number Generation",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-10-20T21:14:59",
        "orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
        "shortName": "openssl"
      },
      "references": [
        {
          "name": "FEDORA-2019-d15aac6c4e",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/"
        },
        {
          "name": "FEDORA-2019-d51641f152",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/"
        },
        {
          "name": "20191001 [SECURITY] [DSA 4539-1] openssl security update",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "https://seclists.org/bugtraq/2019/Oct/1"
        },
        {
          "name": "DSA-4539",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2019/dsa-4539"
        },
        {
          "name": "USN-4376-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4376-1/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/security-alerts/cpujan2020.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.openssl.org/news/secadv/20190910.txt"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20190919-0002/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.f5.com/csp/article/K44070243"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.f5.com/csp/article/K44070243?utm_source=f5support\u0026amp%3Butm_medium=RSS"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
        }
      ],
      "title": "Fork Protection",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "openssl-security@openssl.org",
          "DATE_PUBLIC": "2019-09-10",
          "ID": "CVE-2019-1549",
          "STATE": "PUBLIC",
          "TITLE": "Fork Protection"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "OpenSSL",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c)"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "OpenSSL"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Matt Caswell"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c)."
            }
          ]
        },
        "impact": [
          {
            "lang": "eng",
            "url": "https://www.openssl.org/policies/secpolicy.html#Low",
            "value": "Low"
          }
        ],
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Random Number Generation"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "FEDORA-2019-d15aac6c4e",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/"
            },
            {
              "name": "FEDORA-2019-d51641f152",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/"
            },
            {
              "name": "20191001 [SECURITY] [DSA 4539-1] openssl security update",
              "refsource": "BUGTRAQ",
              "url": "https://seclists.org/bugtraq/2019/Oct/1"
            },
            {
              "name": "DSA-4539",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2019/dsa-4539"
            },
            {
              "name": "USN-4376-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4376-1/"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuapr2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujul2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujul2020.html"
            },
            {
              "name": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpujan2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpujan2020.html"
            },
            {
              "name": "https://www.openssl.org/news/secadv/20190910.txt",
              "refsource": "CONFIRM",
              "url": "https://www.openssl.org/news/secadv/20190910.txt"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20190919-0002/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20190919-0002/"
            },
            {
              "name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be",
              "refsource": "CONFIRM",
              "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be"
            },
            {
              "name": "https://support.f5.com/csp/article/K44070243",
              "refsource": "CONFIRM",
              "url": "https://support.f5.com/csp/article/K44070243"
            },
            {
              "name": "https://support.f5.com/csp/article/K44070243?utm_source=f5support\u0026amp;utm_medium=RSS",
              "refsource": "CONFIRM",
              "url": "https://support.f5.com/csp/article/K44070243?utm_source=f5support\u0026amp;utm_medium=RSS"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuoct2020.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuoct2020.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2019-1549",
    "datePublished": "2019-09-10T16:58:35.361288Z",
    "dateReserved": "2018-11-28T00:00:00",
    "dateUpdated": "2024-09-16T22:56:57.501Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-1549\",\"sourceIdentifier\":\"openssl-security@openssl.org\",\"published\":\"2019-09-10T17:15:11.813\",\"lastModified\":\"2023-11-07T03:08:28.563\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).\"},{\"lang\":\"es\",\"value\":\"OpenSSL versi\u00f3n 1.1.1 introdujo un generador de n\u00fameros aleatorios (RNG) reescrito. Este tuvo la intenci\u00f3n de incluir protecci\u00f3n en el caso de una llamada de sistema fork() para asegurar que los procesos padre e hijo no compartieran el mismo estado RNG. Sin embargo, esta protecci\u00f3n no estaba siendo usada en el caso predeterminado. Una mitigaci\u00f3n parcial para este problema es que la salida de un temporizador de alta precisi\u00f3n se mezcla en el estado RNG, por lo que la probabilidad de un estado de intercambio de procesos padre e hijo es reducida significativamente. Si una aplicaci\u00f3n ahora llama a OPENSSL_init_crypto() expl\u00edcitamente utilizando OPENSSL_INIT_ATFORK, este problema no se produce en absoluto. Corregido en OpenSSL versi\u00f3n 1.1.1d (afectadas las versiones 1.1.1 hasta 1.1.1c).\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:N/A:N\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\",\"baseScore\":5.0},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-330\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.1.1\",\"versionEndIncluding\":\"1.1.1c\",\"matchCriteriaId\":\"A2ACA227-3992-478E-85C3-023D8AF88A08\"}]}]}],\"references\":[{\"url\":\"https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://seclists.org/bugtraq/2019/Oct/1\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20190919-0002/\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://support.f5.com/csp/article/K44070243\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://support.f5.com/csp/article/K44070243?utm_source=f5support\u0026amp%3Butm_medium=RSS\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://usn.ubuntu.com/4376-1/\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://www.debian.org/security/2019/dsa-4539\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://www.openssl.org/news/secadv/20190910.txt\",\"source\":\"openssl-security@openssl.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpuapr2020.html\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://www.oracle.com/security-alerts/cpujan2020.html\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://www.oracle.com/security-alerts/cpujul2020.html\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://www.oracle.com/security-alerts/cpuoct2020.html\",\"source\":\"openssl-security@openssl.org\"},{\"url\":\"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html\",\"source\":\"openssl-security@openssl.org\"}]}}"
  }
}


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.