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{"acknowledgement": "Red Hat would like to thank Xen project for reporting this issue.", "bugzilla": {"description": "kernel: xen: lock order reversal between page_alloc_lock and mm_rwlock", "id": "1029120", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1029120"}, "csaw": false, "cvss": {"cvss_base_score": "4.3", "cvss_scoring_vector": "AV:A/AC:H/Au:S/C:N/I:N/A:C", "status": "draft"}, "details": ["The XEN_DOMCTL_getmemlist hypercall in Xen 3.4.x through 4.3.x (possibly 4.3.1) does not always obtain the page_alloc_lock and mm_rwlock in the same order, which allows local guest administrators to cause a denial of service (host deadlock)."], "name": "CVE-2013-4553", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel-xen", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2013-11-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2013-4553\nhttps://nvd.nist.gov/vuln/detail/CVE-2013-4553"], "statement": "Not vulnerable.\nThis issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5.\nThis issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2 as we did not have support for Xen hypervisor.", "threat_severity": "Moderate"}