{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2019-3701",
        "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 can_can_gw_rcv in net/can/gw.c in the Linux kernel through 4.19.13. The CAN frame modification rules allow bitwise logical operations that can be also applied to the can_dlc field. The privileged user \"root\" with CAP_NET_ADMIN can create a CAN frame modification rule that makes the data length code a higher value than the available CAN frame data size. In combination with a configured checksum calculation where the result is stored relatively to the end of the data (e.g. cgw_csum_xor_rel) the tail of the skb (e.g. frag_list pointer in skb_shared_info) can be rewritten which finally can cause a system crash. Because of a missing check, the CAN drivers may write arbitrary content beyond the data registers in the CAN controller's I/O memory when processing can-gw manipulated outgoing frames."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://marc.info/?l=linux-netdev&m=154651842302479&w=2",
                "refsource": "MISC",
                "url": "https://marc.info/?l=linux-netdev&m=154651842302479&w=2"
            },
            {
                "name": "106443",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/106443"
            },
            {
                "name": "https://bugzilla.suse.com/show_bug.cgi?id=1120386",
                "refsource": "MISC",
                "url": "https://bugzilla.suse.com/show_bug.cgi?id=1120386"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20190327 [SECURITY] [DLA 1731-1] linux security update",
                "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20190401 [SECURITY] [DLA 1731-2] linux regression update",
                "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-3932-1",
                "url": "https://usn.ubuntu.com/3932-1/"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-3932-2",
                "url": "https://usn.ubuntu.com/3932-2/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://support.f5.com/csp/article/K17957133",
                "url": "https://support.f5.com/csp/article/K17957133"
            },
            {
                "refsource": "MISC",
                "name": "https://marc.info/?l=linux-netdev&m=154661373531512&w=2",
                "url": "https://marc.info/?l=linux-netdev&m=154661373531512&w=2"
            },
            {
                "refsource": "MISC",
                "name": "https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=0aaa81377c5a01f686bcdb8c7a6929a7bf330c68",
                "url": "https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=0aaa81377c5a01f686bcdb8c7a6929a7bf330c68"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20190503 [SECURITY] [DLA 1771-1] linux-4.9 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4115-1",
                "url": "https://usn.ubuntu.com/4115-1/"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4118-1",
                "url": "https://usn.ubuntu.com/4118-1/"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2020:0543",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html"
            }
        ]
    }
}