{
  "threat_severity" : "Low",
  "public_date" : "2019-07-09T00:00:00Z",
  "bugzilla" : {
    "description" : "nss: PKCS#1 v1.5 signatures can be used for TLS 1.3",
    "id" : "1730988",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1730988"
  },
  "cvss3" : {
    "cvss3_base_score" : "3.4",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N",
    "status" : "verified"
  },
  "cwe" : "CWE-327",
  "details" : [ "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." ],
  "acknowledgement" : "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Hubert Kario as the original reporter.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-09-29T00:00:00Z",
    "advisory" : "RHSA-2020:4076",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "nspr-0:4.25.0-2.el7_9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-09-29T00:00:00Z",
    "advisory" : "RHSA-2020:4076",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "nss-0:3.53.1-3.el7_9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-09-29T00:00:00Z",
    "advisory" : "RHSA-2020:4076",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "nss-softokn-0:3.53.1-6.el7_9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2020-09-29T00:00:00Z",
    "advisory" : "RHSA-2020:4076",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "nss-util-0:3.53.1-1.el7_9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2019-07-30T00:00:00Z",
    "advisory" : "RHSA-2019:1951",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "nspr-0:4.21.0-2.el8_0"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2019-07-30T00:00:00Z",
    "advisory" : "RHSA-2019:1951",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "nss-0:3.44.0-7.el8_0"
  }, {
    "product_name" : "Red Hat OpenShift Do",
    "release_date" : "2021-03-22T00:00:00Z",
    "advisory" : "RHSA-2021:0949",
    "cpe" : "cpe:/a:redhat:openshift_do:1.0::el7",
    "package" : "openshiftdo/odo-init-image-rhel7:1.1.3-2"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Out of support scope",
    "package_name" : "nss",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Out of support scope",
    "package_name" : "nss",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2019-11727\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-11727\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11727" ],
  "name" : "CVE-2019-11727",
  "csaw" : false
}