{
  "threat_severity" : "Moderate",
  "public_date" : "2024-02-19T00:00:00Z",
  "bugzilla" : {
    "description" : "qemu-kvm: pcie: improper validation of NumVFs leads to buffer overflow",
    "id" : "2264844",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2264844"
  },
  "cvss3" : {
    "cvss3_base_score" : "5.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-120",
  "details" : [ "An issue was discovered in QEMU 7.1.0 through 8.2.1. register_vfs in hw/pci/pcie_sriov.c mishandles the situation where a guest writes NumVFs greater than TotalVFs, leading to a buffer overflow in VF implementations.", "A flaw was found in the SR/IOV emulation support of QEMU. The register_vfs() function in hw/pci/pcie_sriov.c mishandled the situation where a guest writes NumVFs greater than TotalVFs, leading to a buffer overflow in VF (Virtual Function) implementations. This flaw allows a malicious guest to crash QEMU and cause a denial of service condition." ],
  "statement" : "The `qemu-kvm` versions, as shipped with Red Hat Enterprise Linux 6, 7, 8 and RHEL Advanced Virtualization, are not affected by this CVE as they did not include Single Root I/O Virtualization (SR/IOV) support.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-11-12T00:00:00Z",
    "advisory" : "RHSA-2024:9136",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "qemu-kvm-17:9.0.0-10.el9_5"
  } ],
  "package_state" : [ {
    "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 8",
    "fix_state" : "Not affected",
    "package_name" : "virt:rhel/qemu-kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8 Advanced Virtualization",
    "fix_state" : "Not affected",
    "package_name" : "virt:av/qemu-kvm",
    "cpe" : "cpe:/a:redhat:advanced_virtualization:8::el8"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2024-26327\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26327\nhttps://lore.kernel.org/all/20240214-reuse-v4-5-89ad093a07f4@daynix.com/" ],
  "name" : "CVE-2024-26327",
  "csaw" : false
}