{
  "threat_severity" : "Moderate",
  "public_date" : "2023-08-03T00:00:00Z",
  "bugzilla" : {
    "description" : "QEMU: NVMe: out-of-bounds read information disclosure vulnerability",
    "id" : "2229101",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2229101"
  },
  "cvss3" : {
    "cvss3_base_score" : "6.0",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N",
    "status" : "draft"
  },
  "cwe" : "CWE-125",
  "details" : [ "A heap out-of-bounds memory read flaw was found in the virtual nvme device in QEMU. The QEMU process does not validate an offset provided by the guest before computing a host heap pointer, which is used for copying data back to the guest. Arbitrary heap memory relative to an allocated buffer can be disclosed.", "A heap out-of-bounds memory read flaw was found in the virtual nvme device in QEMU. The QEMU process does not validate an offset provided by the guest before computing a host heap pointer, which is used for copying data back to the guest. Arbitrary heap memory relative to an allocated buffer can be disclosed." ],
  "statement" : "The `qemu-kvm` packages as shipped with Red Hat Enterprise Linux are not affected by this flaw as they do not include support for NVMe emulation.",
  "acknowledgement" : "Red Hat would like to thank Trend Micro Zero Day Initiative for reporting this issue.",
  "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"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "qemu-kvm",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-4135\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-4135\nhttps://www.zerodayinitiative.com/advisories/ZDI-CAN-21521" ],
  "name" : "CVE-2023-4135",
  "csaw" : false
}