{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-27171",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
                                        }
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                                }
                            }
                        ]
                    },
                    "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 before 5.11.8. kernel/bpf/verifier.c has an off-by-one error (with a resultant integer underflow) affecting out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-10d2bb2e6b1d."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.8",
                "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.8"
            },
            {
                "refsource": "MISC",
                "name": "https://www.openwall.com/lists/oss-security/2021/03/19/3",
                "url": "https://www.openwall.com/lists/oss-security/2021/03/19/3"
            },
            {
                "refsource": "MISC",
                "name": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/patch/?id=10d2bb2e6b1d8c4576c56a748f697dbeb8388899",
                "url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/patch/?id=10d2bb2e6b1d8c4576c56a748f697dbeb8388899"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-f0181b8085",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QRTPQE73ANG7D6M4L4PK5ZQDPO4Y2FVD/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-e49da8a226",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FB6LUXPEIRLZH32YXWZVEZAD4ZL6SDK2/"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20210324 Re: [CVE-2020-27171] Numeric error when restricting speculative pointer arithmetic allows unprivileged local users to leak content of kernel memory",
                "url": "http://www.openwall.com/lists/oss-security/2021/03/24/5"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-9503fffad9",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T2S3I4SLRNRUQDOFYUS6IUAZMQNMPNLG/"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20210330 [SECURITY] [DLA 2610-1] linux-4.19 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html"
            },
            {
                "refsource": "MISC",
                "name": "http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html",
                "url": "http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html"
            }
        ]
    }
}