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`. https://github.com/git/git/security/advisories/GHSA-3wp6-j8xr-qw85 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VFYXCTLOSESYIP72BUYD6ECDIMUM4WMB/
Created git tracking bugs for this issue: Affects: fedora-all [bug 2137426]
Fixes were pushed to bodhi before this ticket was filed, so it should be closed manually.
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2023:2319 https://access.redhat.com/errata/RHSA-2023:2319
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2023:2859 https://access.redhat.com/errata/RHSA-2023:2859
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-39253
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Extended Update Support Via RHSA-2024:0407 https://access.redhat.com/errata/RHSA-2024:0407