CVE-2022-2962

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{"acknowledgement": "Red Hat would like to thank Siqi Chen (Shanghai Jiaotong University) and Zheyu Ma for reporting this issue.", "bugzilla": {"description": "QEMU: tulip: DMA reentrancy issue leads to stack or heap overflow", "id": "2120631", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2120631"}, "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:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-662", "details": ["A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.", "A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its MMIO address. This issue can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. This flaw allows a malicious guest to crash the QEMU process on the host, resulting in a denial of service condition."], "name": "CVE-2022-2962", "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:8.2/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}, {"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"}, {"cpe": "cpe:/a:redhat:openstack:13", "fix_state": "Not affected", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat OpenStack Platform 13 (Queens)"}], "public_date": "2022-08-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-2962\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-2962"], "statement": "The `qemu-kvm` packages as shipped with Red Hat Enterprise Linux 8 Advanced Virtualization and Red Hat Enterprise Linux 6, 7, 8 are not affected by this issue as the Tulip NIC device is not included.", "threat_severity": "Low"}

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