{
  "threat_severity" : "Moderate",
  "public_date" : "2021-03-02T18:00:00Z",
  "bugzilla" : {
    "description" : "grub2: Use-after-free in rmmod command",
    "id" : "1879577",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1879577"
  },
  "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-416",
  "details" : [ "A flaw was found in grub2 in versions prior to 2.06. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.", "A flaw was found in grub2. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. 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"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Will not fix",
    "package_name" : "fwupdate",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2020-25632\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-25632" ],
  "name" : "CVE-2020-25632",
  "csaw" : false
}