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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7C19DB2D-DE85-4140-817A-D010708EB355", "versionEndIncluding": "4.9.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel before 4.9.5 improperly emulates a \"MOV SS, NULL selector\" instruction, which allows guest OS users to cause a denial of service (guest OS crash) or gain guest OS privileges via a crafted application."}, {"lang": "es", "value": "La implementaci\u00f3n de load_segment_descriptor en arc/x86/kvm/emulate.c en el kernel de Linux en versiones anteriores a 4.9.5 emula indebidamente una instrucci\u00f3n \"MOV SS, NULL selector\", lo que permite a usuarios del SO invitado provocar una denegaci\u00f3n de servicio (ca\u00edda del SO invitado) u obteniendo privilegios de SO invitado a trav\u00e9s de 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{"acknowledgement": "Red Hat would like to thank Xiaohan Zhang (Huawei Inc.) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2017:1616", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-514.26.1.rt56.442.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-06-28T00:00:00Z"}, {"advisory": "RHSA-2017:1615", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-514.26.1.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-06-28T00:00:00Z"}], "bugzilla": {"description": "Kernel: Kvm: vmx/svm potential privilege escalation inside guest", "id": "1414735", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1414735"}, "csaw": false, "cvss": {"cvss_base_score": "4.9", "cvss_scoring_vector": "AV:A/AC:M/Au:S/C:P/I:P/A:P", "status": "verified"}, "cvss3": {"cvss3_base_score": "6.4", "cvss3_scoring_vector": "CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-250", "details": ["The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel before 4.9.5 improperly emulates a \"MOV SS, NULL selector\" instruction, which allows guest OS users to cause a denial of service (guest OS crash) or gain guest OS privileges via a crafted application.", "Linux kernel built with the Kernel-based Virtual Machine (CONFIG_KVM) support was vulnerable to an incorrect segment selector(SS) value error. The error could occur while loading values into the SS register in long mode. A user or process inside a guest could use this flaw to crash the guest, resulting in DoS or potentially escalate their privileges inside the guest."], "name": "CVE-2017-2583", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2017-01-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-2583\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-2583"], "statement": "This issue does not affect the versions of the kernel package as shipped with\nRed Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG 2.\nThis issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 7. Future kernel updates for Red Hat Enterprise Linux 7\nmay address this issue.", "threat_severity": "Moderate"}

{}