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{"acknowledgement": "Red Hat would like to thank Trend Micro Zero Day Initiative for reporting this issue.", "bugzilla": {"description": "QEMU: NVMe: out-of-bounds read information disclosure vulnerability", "id": "2229101", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2229101"}, "csaw": false, "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."], "name": "CVE-2023-4135", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm-ma", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "virt:rhel/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Not affected", "package_name": "virt:av/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2023-08-03T00:00:00Z", "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"], "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.", "threat_severity": "Moderate", "upstream_fix": "qemu-kvm 8.1.0"}