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{"acknowledgement": "Red Hat would like to thank Xen project for reporting this issue.", "bugzilla": {"description": "xen: PCI MSI mask bits inadvertently exposed to guests (xsa-129)", "id": "1223851", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1223851"}, "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": ["Xen 3.3.x through 4.5.x does not properly restrict access to PCI MSI mask bits, which allows local x86 HVM guest users to cause a denial of service (unexpected interrupt and host crash) via unspecified vectors."], "name": "CVE-2015-4104", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Affected", "package_name": "xen", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2015-06-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-4104\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-4104\nhttp://xenbits.xen.org/xsa/advisory-129.html"], "statement": "This issue does affect then Xen packages as shipped with Red Hat Enterprise Linux 5.\nRed Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.", "threat_severity": "Low"}