cvelist/2021/29xxx/CVE-2021-29468.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-29468",
        "STATE": "PUBLIC",
        "TITLE": "Arbitrary code execution when checking out an attacker-controlled Git branch"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Cygwin-Git",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 2.31.1-2"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "me-and"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Cygwin Git is a patch set for the git command line tool for the cygwin environment. A specially crafted repository that contains symbolic links as well as files with backslash characters in the file name may cause just-checked out code to be executed while checking out a repository using Git on Cygwin. The problem will be patched in the Cygwin Git v2.31.1-2 release. At time of writing, the vulnerability is present in the upstream Git source code; any Cygwin user who compiles Git for themselves from upstream sources should manually apply a patch to mitigate the vulnerability. As mitigation users should not clone or pull from repositories from untrusted sources. CVE-2019-1354 was an equivalent vulnerability in Git for Visual Studio."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-20: Improper Input Validation "
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/me-and/Cygwin-Git/security/advisories/GHSA-rmp3-wq55-f557",
                "refsource": "CONFIRM",
                "url": "https://github.com/me-and/Cygwin-Git/security/advisories/GHSA-rmp3-wq55-f557"
            },
            {
                "name": "https://github.com/me-and/Cygwin-Git/blob/main/check-backslash-safety.patch",
                "refsource": "MISC",
                "url": "https://github.com/me-and/Cygwin-Git/blob/main/check-backslash-safety.patch"
            },
            {
                "name": "https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html",
                "refsource": "MISC",
                "url": "https://cygwin.com/pipermail/cygwin-announce/2021-April/010018.html"
            },
            {
                "name": "https://lore.kernel.org/git/CA+kUOa=juEdBMVr_gyTKjz7PkPt2DZHkXQyzcQmAWCsEHC_ssw@mail.gmail.com/T/#u",
                "refsource": "MISC",
                "url": "https://lore.kernel.org/git/CA+kUOa=juEdBMVr_gyTKjz7PkPt2DZHkXQyzcQmAWCsEHC_ssw@mail.gmail.com/T/#u"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-rmp3-wq55-f557",
        "discovery": "UNKNOWN"
    }
}