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{"acknowledgement": "Red Hat would like to thank Qiuhao Li for reporting this issue.", "affected_release": [{"advisory": "RHSA-2021:1762", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt-devel:rhel-8040020210317013608.9f9e2e7e", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2021:1762", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "virt:rhel-8040020210317013608.9f9e2e7e", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}], "bugzilla": {"description": "QEMU: slirp: out-of-bounds access while processing ARP/NCSI packets", "id": "1902231", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1902231"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N", "status": "verified"}, "cwe": "CWE-125", "details": ["ncsi.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of header data even if that exceeds the total packet length.", "An out-of-bounds access issue was found in the SLiRP user networking implementation of QEMU. It could occur while processing ARP/NCSI packets, if the packet length was shorter than required to accommodate respective protocol headers and payload. A privileged guest user may use this flaw to potentially leak host information bytes."], "name": "CVE-2020-29129", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "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": "Out of support scope", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "qemu-kvm", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "qemu-kvm-ma", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "qemu-kvm-rhev", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:advanced_virtualization:8::el8", "fix_state": "Affected", "package_name": "virt:8.3/qemu-kvm", "product_name": "Red Hat Enterprise Linux 8 Advanced Virtualization"}], "public_date": "2020-11-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-29129\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-29129\nhttps://www.openwall.com/lists/oss-security/2020/11/27/1"], "threat_severity": "Low"}