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{"acknowledgement": "Red Hat would like to thank Gaoning Pan (Zhejiang university), Yi Ren (Alibaba Cloud Intelligence Security Team), and Yongkang Jia (Zhejiang university) for reporting this issue.", "bugzilla": {"description": "QEMU: usb: hcd-ohci: out-of-bound access issue while processing transfer descriptors", "id": "1879801", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1879801"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L", "status": "draft"}, "cwe": "CWE-125->CWE-787", "details": ["hw/usb/hcd-ohci.c in QEMU 5.0.0 has a stack-based buffer over-read via values obtained from the host controller driver.", "A flaw was found in QEMU. An out-of-bounds read/write access issue was found in the USB OHCI controller emulator. This issue occurs while servicing transfer descriptors (TD), as the OHCI controller derives variables 'start_addr', 'end_addr', and 'len' from values supplied by the host controller driver. The host controller driver may supply values when using these variables, leading to an out-of-bounds access issue. This flaw allows a guest user or process to crash the QEMU process on the host, resulting in a denial of service."], "name": "CVE-2020-25624", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kvm", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "xen", "product_name": "Red Hat Enterprise Linux 5"}, {"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": "Will not fix", "package_name": "qemu-kvm-ma", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Not affected", "package_name": "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": "2020-09-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-25624\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-25624"], "threat_severity": "Moderate"}