{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2018-7540",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
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                                "version": {
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                                            "version_value": "n/a"
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    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing."
            }
        ]
    },
    "problemtype": {
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                        "value": "n/a"
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    "references": {
        "reference_data": [
            {
                "name": "https://xenbits.xen.org/xsa/advisory-252.html",
                "refsource": "CONFIRM",
                "url": "https://xenbits.xen.org/xsa/advisory-252.html"
            },
            {
                "name": "GLSA-201810-06",
                "refsource": "GENTOO",
                "url": "https://security.gentoo.org/glsa/201810-06"
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            {
                "name": "1040773",
                "refsource": "SECTRACK",
                "url": "http://www.securitytracker.com/id/1040773"
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            {
                "name": "[debian-lts-announce] 20181112 [SECURITY] [DLA 1577-1] xen security update",
                "refsource": "MLIST",
                "url": "https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html"
            },
            {
                "name": "[debian-lts-announce] 20180306 [SECURITY] [DLA 1300-1] xen security update",
                "refsource": "MLIST",
                "url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html"
            },
            {
                "name": "103174",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/103174"
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            {
                "name": "DSA-4131",
                "refsource": "DEBIAN",
                "url": "https://www.debian.org/security/2018/dsa-4131"
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            {
                "name": "https://support.citrix.com/article/CTX232655",
                "refsource": "CONFIRM",
                "url": "https://support.citrix.com/article/CTX232655"
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            {
                "name": "https://support.citrix.com/article/CTX232096",
                "refsource": "CONFIRM",
                "url": "https://support.citrix.com/article/CTX232096"
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}