CVE-2019-11727 (GCVE-0-2019-11727)

Vulnerability from cvelistv5 – Published: 2019-07-23 13:16 – Updated: 2024-08-04 23:03
VLAI
Summary
A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox < 68.
Severity
No CVSS data available.
CWE
  • PKCS#1 v1.5 signatures can be used for TLS 1.3
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Affected: unspecified , < 68 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T23:03:32.496Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.mozilla.org/security/advisories/mfsa2019-21/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1552208"
          },
          {
            "name": "RHSA-2019:1951",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1951"
          },
          {
            "name": "GLSA-201908-12",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201908-12"
          },
          {
            "name": "openSUSE-SU-2019:2248",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html"
          },
          {
            "name": "openSUSE-SU-2019:2249",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html"
          },
          {
            "name": "openSUSE-SU-2019:2251",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html"
          },
          {
            "name": "openSUSE-SU-2019:2260",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html"
          },
          {
            "name": "openSUSE-SU-2020:0008",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Firefox",
          "vendor": "Mozilla",
          "versions": [
            {
              "lessThan": "68",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox \u003c 68."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "PKCS#1 v1.5 signatures can be used for TLS 1.3",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-01-12T00:06:04.000Z",
        "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
        "shortName": "mozilla"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.mozilla.org/security/advisories/mfsa2019-21/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1552208"
        },
        {
          "name": "RHSA-2019:1951",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1951"
        },
        {
          "name": "GLSA-201908-12",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201908-12"
        },
        {
          "name": "openSUSE-SU-2019:2248",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html"
        },
        {
          "name": "openSUSE-SU-2019:2249",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html"
        },
        {
          "name": "openSUSE-SU-2019:2251",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html"
        },
        {
          "name": "openSUSE-SU-2019:2260",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html"
        },
        {
          "name": "openSUSE-SU-2020:0008",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@mozilla.org",
          "ID": "CVE-2019-11727",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Firefox",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_value": "68"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Mozilla"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox \u003c 68."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "PKCS#1 v1.5 signatures can be used for TLS 1.3"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.mozilla.org/security/advisories/mfsa2019-21/",
              "refsource": "MISC",
              "url": "https://www.mozilla.org/security/advisories/mfsa2019-21/"
            },
            {
              "name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1552208",
              "refsource": "MISC",
              "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1552208"
            },
            {
              "name": "RHSA-2019:1951",
              "refsource": "REDHAT",
              "url": "https://access.redhat.com/errata/RHSA-2019:1951"
            },
            {
              "name": "GLSA-201908-12",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/201908-12"
            },
            {
              "name": "openSUSE-SU-2019:2248",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html"
            },
            {
              "name": "openSUSE-SU-2019:2249",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html"
            },
            {
              "name": "openSUSE-SU-2019:2251",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html"
            },
            {
              "name": "openSUSE-SU-2019:2260",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html"
            },
            {
              "name": "openSUSE-SU-2020:0008",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
    "assignerShortName": "mozilla",
    "cveId": "CVE-2019-11727",
    "datePublished": "2019-07-23T13:16:44.000Z",
    "dateReserved": "2019-05-03T00:00:00.000Z",
    "dateUpdated": "2024-08-04T23:03:32.496Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2019-11727",
      "date": "2026-05-27",
      "epss": "0.00244",
      "percentile": "0.47644"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-11727\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2019-07-23T14:15:16.450\",\"lastModified\":\"2024-11-21T04:21:40.353\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages. This vulnerability affects Firefox \u003c 68.\"},{\"lang\":\"es\",\"value\":\"Se presenta una vulnerabilidad donde es posible forzar a Network Security Services (NSS) para firmar CertificateVerify con firmas de PKCS#1 versi\u00f3n v1.5 cuando esas son las \u00fanicas anunciadas por el servidor en CertificateRequest en TLS versi\u00f3n 1.3. Las firmas de PKCS#1 versi\u00f3n v1.5 no deben ser usadas para mensajes de TLS versi\u00f3n 1.3. Esta vulnerabilidad afecta a Firefox anterior a versi\u00f3n 68.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"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:N/I:P/A:N\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"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-295\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"68.0\",\"matchCriteriaId\":\"BB53FE62-B5D2-497B-A7E3-40FFE81A9653\"}]}]}],\"references\":[{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html\",\"source\":\"security@mozilla.org\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html\",\"source\":\"security@mozilla.org\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html\",\"source\":\"security@mozilla.org\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html\",\"source\":\"security@mozilla.org\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:1951\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1552208\",\"source\":\"security@mozilla.org\",\"tags\":[\"Issue Tracking\",\"Permissions Required\",\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201908-12\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2019-21/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:1951\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1552208\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Permissions Required\",\"Vendor Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201908-12\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2019-21/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.