cvelist/2021/32xxx/CVE-2021-32841.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-32841",
        "STATE": "PUBLIC",
        "TITLE": "Path Traversal in SharpZipLib"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "sharpziplib",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "1.3.3",
                                            "version_value": "1.3.3"
                                        },
                                        {
                                            "version_affected": ">=",
                                            "version_name": "1.3.0",
                                            "version_value": "1.3.0"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "icsharpcode"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Starting version 1.3.0 and prior to version 1.3.3, a check was added if the destination file is under destination directory. However, it is not enforced that `destDir` ends with slash. If the `destDir` is not slash terminated like `/home/user/dir` it is possible to create a file with a name thats begins with the destination directory, i.e. `/home/user/dir.sh`. Because of the file name and destination directory constraints, the arbitrary file creation impact is limited and depends on the use case. Version 1.3.3 contains a patch for this vulnerability."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/",
                "refsource": "CONFIRM",
                "url": "https://securitylab.github.com/advisories/GHSL-2021-125-sharpziplib/"
            },
            {
                "name": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3",
                "refsource": "MISC",
                "url": "https://github.com/icsharpcode/SharpZipLib/releases/tag/v1.3.3"
            },
            {
                "name": "https://github.com/icsharpcode/SharpZipLib/commit/5c3b293de5d65b108e7f2cd0ea8f81c1b8273f78",
                "refsource": "MISC",
                "url": "https://github.com/icsharpcode/SharpZipLib/commit/5c3b293de5d65b108e7f2cd0ea8f81c1b8273f78"
            }
        ]
    },
    "source": {
        "discovery": "INTERNAL"
    }
}