{
  "threat_severity" : "Moderate",
  "public_date" : "2021-03-02T18:00:00Z",
  "bugzilla" : {
    "description" : "grub2: Heap out-of-bounds write in short form option parser",
    "id" : "1924696",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1924696"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-787",
  "details" : [ "A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.", "A flaw was found in grub2. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability." ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0699",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7",
    "package" : "grub2-1:2.02-0.87.el7_9.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.2 Advanced Update Support",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0704",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.2",
    "package" : "grub2-1:2.02-0.86.el7_2.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.3 Advanced Update Support",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0703",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.3",
    "package" : "grub2-1:2.02-0.86.el7_3.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.4 Advanced Update Support",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0702",
    "cpe" : "cpe:/o:redhat:rhel_aus:7.4",
    "package" : "grub2-1:2.02-0.86.el7_4.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.4 Telco Extended Update Support",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0702",
    "cpe" : "cpe:/o:redhat:rhel_tus:7.4",
    "package" : "grub2-1:2.02-0.86.el7_4.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0702",
    "cpe" : "cpe:/o:redhat:rhel_e4s:7.4",
    "package" : "grub2-1:2.02-0.86.el7_4.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.6 Extended Update Support",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0701",
    "cpe" : "cpe:/o:redhat:rhel_eus:7.6",
    "package" : "grub2-1:2.02-0.86.el7_6.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7.7 Extended Update Support",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0700",
    "cpe" : "cpe:/o:redhat:rhel_eus:7.7",
    "package" : "grub2-1:2.02-0.86.el7_7.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0696",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "grub2-1:2.02-90.el8_3.1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2021-05-18T00:00:00Z",
    "advisory" : "RHSA-2021:1734",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "shim-0:15.4-2.el8_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2021-05-18T00:00:00Z",
    "advisory" : "RHSA-2021:1734",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "shim-unsigned-aarch64-0:15-7.el8_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2021-05-18T00:00:00Z",
    "advisory" : "RHSA-2021:1734",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "shim-unsigned-x64-0:15.4-4.el8_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2021-06-29T00:00:00Z",
    "advisory" : "RHSA-2021:2566",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "fwupd-0:1.5.9-1.el8_4"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Extended Update Support",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0698",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.1",
    "package" : "grub2-1:2.02-87.el8_1.2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Extended Update Support",
    "release_date" : "2021-09-28T00:00:00Z",
    "advisory" : "RHSA-2021:3675",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.1",
    "package" : "fwupd-0:1.1.4-4.el8_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Extended Update Support",
    "release_date" : "2021-09-28T00:00:00Z",
    "advisory" : "RHSA-2021:3675",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.1",
    "package" : "shim-0:15.4-2.el8_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Extended Update Support",
    "release_date" : "2021-09-28T00:00:00Z",
    "advisory" : "RHSA-2021:3675",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.1",
    "package" : "shim-unsigned-aarch64-0:15-7.el8_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.1 Extended Update Support",
    "release_date" : "2021-09-28T00:00:00Z",
    "advisory" : "RHSA-2021:3675",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.1",
    "package" : "shim-unsigned-x64-0:15.4-4.el8_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Extended Update Support",
    "release_date" : "2021-03-02T00:00:00Z",
    "advisory" : "RHSA-2021:0697",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.2",
    "package" : "grub2-1:2.02-87.el8_2.3"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Extended Update Support",
    "release_date" : "2021-07-20T00:00:00Z",
    "advisory" : "RHSA-2021:2790",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.2",
    "package" : "fwupd-0:1.1.4-9.el8_2"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Extended Update Support",
    "release_date" : "2021-07-20T00:00:00Z",
    "advisory" : "RHSA-2021:2790",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.2",
    "package" : "shim-0:15.4-2.el8_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Extended Update Support",
    "release_date" : "2021-07-20T00:00:00Z",
    "advisory" : "RHSA-2021:2790",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.2",
    "package" : "shim-unsigned-aarch64-0:15-7.el8_1"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8.2 Extended Update Support",
    "release_date" : "2021-07-20T00:00:00Z",
    "advisory" : "RHSA-2021:2790",
    "cpe" : "cpe:/o:redhat:rhel_eus:8.2",
    "package" : "shim-unsigned-x64-0:15.4-4.el8_1"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Affected",
    "package_name" : "fwupd",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Affected",
    "package_name" : "fwupdate",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "shim",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2021-20225\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-20225" ],
  "name" : "CVE-2021-20225",
  "csaw" : false
}