cvelist/2022/39xxx/CVE-2022-39253.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-39253",
        "STATE": "PUBLIC",
        "TITLE": "Git subject to exposure of sensitive information via local clone of symbolic links"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "git",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 2.30.6"
                                        },
                                        {
                                            "version_value": "< 2.31.5"
                                        },
                                        {
                                            "version_value": "< 2.32.4"
                                        },
                                        {
                                            "version_value": "< 2.33.5"
                                        },
                                        {
                                            "version_value": "< 2.34.5"
                                        },
                                        {
                                            "version_value": "< 2.35.5"
                                        },
                                        {
                                            "version_value": "< 2.36.3"
                                        },
                                        {
                                            "version_value": "< 2.37.4"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "git"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Git is an open source, scalable, distributed revision control system. Versions prior to 2.30.6, 2.31.5, 2.32.4, 2.33.5, 2.34.5, 2.35.5, 2.36.3, and 2.37.4 are subject to exposure of sensitive information to a malicious actor. When performing a local clone (where the source and target of the clone are on the same volume), Git copies the contents of the source's `$GIT_DIR/objects` directory into the destination by either creating hardlinks to the source contents, or copying them (if hardlinks are disabled via `--no-hardlinks`). A malicious actor could convince a victim to clone a repository with a symbolic link pointing at sensitive information on the victim's machine. This can be done either by having the victim clone a malicious repository on the same machine, or having them clone a malicious repository embedded as a bare repository via a submodule from any source, provided they clone with the `--recurse-submodules` option. Git does not create symbolic links in the `$GIT_DIR/objects` directory. The problem has been patched in the versions published on 2022-10-18, and backported to v2.30.x. Potential workarounds: Avoid cloning untrusted repositories using the `--local` optimization when on a shared machine, either by passing the `--no-local` option to `git clone` or cloning from a URL that uses the `file://` scheme. Alternatively, avoid cloning repositories from untrusted sources with `--recurse-submodules` or run `git config --global protocol.file.allow user`."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/git/git/security/advisories/GHSA-3wp6-j8xr-qw85",
                "refsource": "CONFIRM",
                "url": "https://github.com/git/git/security/advisories/GHSA-3wp6-j8xr-qw85"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2022-12790ca71a",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VFYXCTLOSESYIP72BUYD6ECDIMUM4WMB/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2022-8b58806840",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UKFHE4KVD7EKS5J3KTDFVBEKU3CLXGVV/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://support.apple.com/kb/HT213496",
                "url": "https://support.apple.com/kb/HT213496"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2022-53aadd995f",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OHNO2FB55CPX47BAXMBWUBGWHO6N6ZZH/"
            },
            {
                "refsource": "FULLDISC",
                "name": "20221107 APPLE-SA-2022-11-01-1 Xcode 14.1",
                "url": "http://seclists.org/fulldisclosure/2022/Nov/1"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2022-2c33bba286",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMQWGMDLX6KTVWW5JZLVPI7ICAK72TN7/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2022-fb088df94c",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C7B6JPKX5CGGLAHXJVQMIZNNEEB72FHD/"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20221213 [SECURITY] [DLA 3239-1] git security update",
                "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00025.html"
            },
            {
                "refsource": "MLIST",
                "name": "[oss-security] 20230214 [Announce] Git 2.39.2 and friends",
                "url": "http://www.openwall.com/lists/oss-security/2023/02/14/5"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-3wp6-j8xr-qw85",
        "discovery": "UNKNOWN"
    }
}