{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-27675",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "url": "https://xenbits.xen.org/xsa/advisory-331.html",
                "refsource": "MISC",
                "name": "https://xenbits.xen.org/xsa/advisory-331.html"
            },
            {
                "url": "https://github.com/torvalds/linux/commit/073d0552ead5bfc7a3a9c01de590e924f11b5dd2",
                "refsource": "MISC",
                "name": "https://github.com/torvalds/linux/commit/073d0552ead5bfc7a3a9c01de590e924f11b5dd2"
            },
            {
                "url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073d0552ead5bfc7a3a9c01de590e924f11b5dd2",
                "refsource": "MISC",
                "name": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073d0552ead5bfc7a3a9c01de590e924f11b5dd2"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2020-474d747b60",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZG6TZLD23QO3PV2AN2HB625ZX47ALTT/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2020-09e4d062fe",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6USZ4APZSBQDHGJLJMHW5JBN4QZV6SKZ/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2020-920a258c79",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNF2R7FUT4IOJ2RIRGQ7X5R4F4FVVLSR/"
            },
            {
                "refsource": "GENTOO",
                "name": "GLSA-202011-06",
                "url": "https://security.gentoo.org/glsa/202011-06"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20201210 [SECURITY] [DLA 2483-1] linux-4.19 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20201218 [SECURITY] [DLA 2494-1] linux security update",
                "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20210119 Xen Security Advisory 331 v3 (CVE-2020-27675) - Race condition in Linux event handler may crash dom0",
                "url": "http://www.openwall.com/lists/oss-security/2021/01/19/3"
            }
        ]
    }
}