cvelist/2020/7xxx/CVE-2020-7062.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security@php.net",
        "DATE_PUBLIC": "2020-02-17T16:21:00.000Z",
        "ID": "CVE-2020-7062",
        "STATE": "PUBLIC",
        "TITLE": "Null Pointer Dereference in PHP Session Upload Progress"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "PHP",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "7.3.x",
                                            "version_value": "7.3.15"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "7.4.x",
                                            "version_value": "7.4.3"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "7.2.x",
                                            "version_value": "7.2.28"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "PHP Group"
                }
            ]
        }
    },
    "configuration": [
        {
            "lang": "eng",
            "value": "file_uploads=1\nsession.upload_progress.enabled=1\nsession.upload_progress.cleanup=0\n"
        }
    ],
    "credit": [
        {
            "lang": "eng",
            "value": "Reported by ryat@php.net"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-476 NULL Pointer Dereference"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://bugs.php.net/bug.php?id=79221",
                "name": "https://bugs.php.net/bug.php?id=79221"
            },
            {
                "refsource": "SUSE",
                "name": "openSUSE-SU-2020:0341",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00023.html"
            },
            {
                "refsource": "GENTOO",
                "name": "GLSA-202003-57",
                "url": "https://security.gentoo.org/glsa/202003-57"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20200326 [SECURITY] [DLA 2160-1] php5 security update",
                "url": "https://lists.debian.org/debian-lts-announce/2020/03/msg00034.html"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4330-1",
                "url": "https://usn.ubuntu.com/4330-1/"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4717",
                "url": "https://www.debian.org/security/2020/dsa-4717"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4719",
                "url": "https://www.debian.org/security/2020/dsa-4719"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.tenable.com/security/tns-2021-14",
                "url": "https://www.tenable.com/security/tns-2021-14"
            }
        ]
    },
    "source": {
        "defect": [
            "https://bugs.php.net/bug.php?id=79221"
        ],
        "discovery": "EXTERNAL"
    },
    "work_around": [
        {
            "lang": "eng",
            "value": "Disable file uploading, file upload tracking or enable session.upload_progress.cleanup."
        }
    ]
}