Git · Git · CVE-2022-39253
**Name of the Vulnerable Software and Affected Versions**
Git versions prior to 2.30.6
Git versions prior to 2.31.5
Git versions prior to 2.32.4
Git versions prior to 2.33.5
Git versions prior to 2.34.5
Git versions prior to 2.35.5
Git versions prior to 2.36.3
Git versions prior to 2.37.4
**Description**
The issue is related to the exposure of sensitive information to a malicious actor when performing a local clone of a Git repository. 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.
**Recommendations**
For versions prior to 2.30.6, update to version 2.30.6 or later.
For versions prior to 2.31.5, update to version 2.31.5 or later.
For versions prior to 2.32.4, update to version 2.32.4 or later.
For versions prior to 2.33.5, update to version 2.33.5 or later.
For versions prior to 2.34.5, update to version 2.34.5 or later.
For versions prior to 2.35.5, update to version 2.35.5 or later.
For versions prior to 2.36.3, update to version 2.36.3 or later.
For versions prior to 2.37.4, update to version 2.37.4 or later.
As a temporary workaround, 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`.