{"id":"CVE-2022-39253","state":"PUBLISHED","title":"Git subject to exposure of sensitive information via local clone of symbolic links","description":"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`.","publishedAt":"2022-10-19T00:00:00.000Z","updatedAt":"2024-08-03T12:00:43.267Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["git git"],"affected":[{"vendor":"git","product":"git","versions":[{"version":"< 2.30.6","status":"affected"},{"version":"< 2.31.5","status":"affected"},{"version":"< 2.32.4","status":"affected"},{"version":"< 2.33.5","status":"affected"},{"version":"< 2.34.5","status":"affected"},{"version":"< 2.35.5","status":"affected"},{"version":"< 2.36.3","status":"affected"},{"version":"< 2.37.4","status":"affected"}]}],"references":["https://github.com/git/git/security/advisories/GHSA-3wp6-j8xr-qw85","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VFYXCTLOSESYIP72BUYD6ECDIMUM4WMB/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UKFHE4KVD7EKS5J3KTDFVBEKU3CLXGVV/","https://support.apple.com/kb/HT213496","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OHNO2FB55CPX47BAXMBWUBGWHO6N6ZZH/","http://seclists.org/fulldisclosure/2022/Nov/1","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMQWGMDLX6KTVWW5JZLVPI7ICAK72TN7/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C7B6JPKX5CGGLAHXJVQMIZNNEEB72FHD/","https://lists.debian.org/debian-lts-announce/2022/12/msg00025.html","http://www.openwall.com/lists/oss-security/2023/02/14/5","https://security.gentoo.org/glsa/202312-15","http://www.openwall.com/lists/oss-security/2024/05/14/2"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T19:50:29.496Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/39xxx/CVE-2022-39253.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-39253","state":"PUBLISHED","datePublished":"2022-10-19T00:00:00.000Z","dateUpdated":"2024-08-03T12:00:43.267Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2022-09-02T00:00:00.000Z"},"containers":{"cna":{"title":"Git subject to exposure of sensitive information via local clone of symbolic links","descriptions":[{"lang":"en","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`."}],"affected":[{"vendor":"git","product":"git","versions":[{"version":"< 2.30.6","status":"affected"},{"version":"< 2.31.5","status":"affected"},{"version":"< 2.32.4","status":"affected"},{"version":"< 2.33.5","status":"affected"},{"version":"< 2.34.5","status":"affected"},{"version":"< 2.35.5","status":"affected"},{"version":"< 2.36.3","status":"affected"},{"version":"< 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