{
  "threat_severity" : "Important",
  "public_date" : "2019-05-22T00:00:00Z",
  "bugzilla" : {
    "description" : "Mozilla: Disable hyperthreading on content JavaScript threads on macOS",
    "id" : "1712624",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1712624"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
    "status" : "draft"
  },
  "cwe" : "CWE-203->CWE-385",
  "details" : [ "If hyperthreading is not disabled, a timing attack vulnerability exists, similar to previous Spectre attacks. Apple has shipped macOS 10.14.5 with an option to disable hyperthreading in applications running untrusted code in a thread through a new sysctl. Firefox now makes use of it on the main thread and any worker threads. *Note: users need to update to macOS 10.14.5 in order to take advantage of this change.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7." ],
  "acknowledgement" : "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Multiple independent researchers as the original reporter.",
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "firefox",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "thunderbird",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "firefox",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "thunderbird",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "firefox",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2019-9815\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-9815\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2019-14/#CVE-2019-9815" ],
  "name" : "CVE-2019-9815",
  "csaw" : false
}