{
  "threat_severity" : "Important",
  "public_date" : "2021-01-21T00:00:00Z",
  "bugzilla" : {
    "description" : "QEMU: virtiofsd: potential privileged host device access from guest",
    "id" : "1915823",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1915823"
  },
  "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-269",
  "details" : [ "A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices.", "A flaw was found in qemu. A host privilege escalation issue was found in the virtio-fs shared file system daemon where a privileged guest user is able to create a device special file in the shared directory and use it to r/w access host devices. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability." ],
  "statement" : "This issue does not affect the version of the qemu-kvm package as shipped with the Red Hat Enterprise Linux 5, 6 and 7. Virtio-fs is fairly new and is not built in the Red Hat Enterprise Linux 5, 6 and 7.\nThis issue affects the version of the qemu-kvm package as shipped with the Red Hat Enterprise Linux 8. Future qemu-kvm package updates for Red Hat Enterprise Linux 8 may address this issue.",
  "acknowledgement" : "Red Hat would like to thank Alex Xu (alxu.ca) for reporting this issue.",
  "affected_release" : [ {
    "product_name" : "Advanced Virtualization for RHEL 8.2.1",
    "release_date" : "2021-03-08T00:00:00Z",
    "advisory" : "RHSA-2021:0743",
    "cpe" : "cpe:/a:redhat:advanced_virtualization:8.2::el8",
    "package" : "virt:8.2-8020120210211153838.863bb0db"
  }, {
    "product_name" : "Advanced Virtualization for RHEL 8.2.1",
    "release_date" : "2021-03-08T00:00:00Z",
    "advisory" : "RHSA-2021:0743",
    "cpe" : "cpe:/a:redhat:advanced_virtualization:8.2::el8",
    "package" : "virt-devel:8.2-8020120210211153838.863bb0db"
  }, {
    "product_name" : "Advanced Virtualization for RHEL 8.3.1",
    "release_date" : "2021-02-22T00:00:00Z",
    "advisory" : "RHBA-2021:0639",
    "cpe" : "cpe:/a:redhat:advanced_virtualization:8.3::el8",
    "package" : "virt:8.3-8030120210211160750.71132145"
  }, {
    "product_name" : "Advanced Virtualization for RHEL 8.3.1",
    "release_date" : "2021-02-22T00:00:00Z",
    "advisory" : "RHBA-2021:0639",
    "cpe" : "cpe:/a:redhat:advanced_virtualization:8.3::el8",
    "package" : "virt-devel:8.3-8030120210211160750.71132145"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2021-03-03T00:00:00Z",
    "advisory" : "RHSA-2021:0711",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "virt-devel:rhel-8030020210210212009.229f0a1c"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2021-03-03T00:00:00Z",
    "advisory" : "RHSA-2021:0711",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8",
    "package" : "virt:rhel-8030020210210212009.229f0a1c"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 5",
    "fix_state" : "Not affected",
    "package_name" : "xen",
    "cpe" : "cpe:/o:redhat:enterprise_linux:5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm-ma",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm-rhev",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8 Advanced Virtualization",
    "fix_state" : "Affected",
    "package_name" : "virt:8.2/qemu-kvm",
    "cpe" : "cpe:/a:redhat:advanced_virtualization:8::el8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8 Advanced Virtualization",
    "fix_state" : "Affected",
    "package_name" : "virt:8.3/qemu-kvm",
    "cpe" : "cpe:/a:redhat:advanced_virtualization:8::el8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2020-35517\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-35517\nhttps://virtio-fs.gitlab.io/\nhttps://www.openwall.com/lists/oss-security/2021/01/22/1" ],
  "name" : "CVE-2020-35517",
  "csaw" : false
}