{
    "data_type": "CVE",
    "data_format": "MITRE",
    "data_version": "4.0",
    "CVE_data_meta": {
        "ID": "CVE-2020-13934",
        "ASSIGNER": "security@apache.org",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Apache Tomcat",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36, 8.5.1 to 8.5.56"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Denial of Service"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e%40%3Cannounce.tomcat.apache.org%3E",
                "url": "https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e%40%3Cannounce.tomcat.apache.org%3E"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4727",
                "url": "https://www.debian.org/security/2020/dsa-4727"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20200722 [SECURITY] [DLA 2286-1] tomcat8 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2020:1102",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2020:1111",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html"
            },
            {
                "refsource": "MLIST",
                "name": "[tomcat-dev] 20200818 [Bug 64671] HTTP/2 Stream.receivedData method throwing continuous NullPointerException in the logs",
                "url": "https://lists.apache.org/thread.html/ra072b1f786e7d139e86f1d1145572e0ff71cef38a96d9c6f5362aac8@%3Cdev.tomcat.apache.org%3E"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuoct2020.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuoct2020.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20200724-0003/",
                "url": "https://security.netapp.com/advisory/ntap-20200724-0003/"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4596-1",
                "url": "https://usn.ubuntu.com/4596-1/"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2021.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuApr2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuApr2021.html"
            },
            {
                "url": "https://www.oracle.com//security-alerts/cpujul2021.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com//security-alerts/cpujul2021.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2022.html"
            }
        ]
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service."
            }
        ]
    }
}