Vulnerability Description
Git GUI is a convenient graphical tool that comes with Git for Windows. Its target audience is users who are uncomfortable with using Git on the command-line. Git GUI has a function to clone repositories. Immediately after the local clone is available, Git GUI will automatically post-process it, among other things running a spell checker called `aspell.exe` if it was found. Git GUI is implemented as a Tcl/Tk script. Due to the unfortunate design of Tcl on Windows, the search path when looking for an executable _always includes the current directory_. Therefore, malicious repositories can ship with an `aspell.exe` in their top-level directory which is executed by Git GUI without giving the user a chance to inspect it first, i.e. running untrusted code. This issue has been addressed in version 2.39.1. Users are advised to upgrade. Users unable to upgrade should avoid using Git GUI for cloning. If that is not a viable option, at least avoid cloning from untrusted sources.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Git-Scm | Git | < 2.39.1 |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
- https://github.com/git-for-windows/git/commit/7360767e8dfc1895a932324079f7d45d77PatchThird Party Advisory
- https://github.com/git-for-windows/git/pull/4219PatchThird Party Advisory
- https://github.com/git-for-windows/git/security/advisories/GHSA-v4px-mx59-w99cPatchThird Party Advisory
- https://www.tcl.tk/man/tcl8.6/TclCmd/exec.html#M23Third Party Advisory
- https://github.com/git-for-windows/git/commit/7360767e8dfc1895a932324079f7d45d77PatchThird Party Advisory
- https://github.com/git-for-windows/git/pull/4219PatchThird Party Advisory
- https://github.com/git-for-windows/git/security/advisories/GHSA-v4px-mx59-w99cPatchThird Party Advisory
- https://www.tcl.tk/man/tcl8.6/TclCmd/exec.html#M23Third Party Advisory
FAQ
What is CVE-2022-41953?
CVE-2022-41953 is a vulnerability with a CVSS score of 8.6 (HIGH). Git GUI is a convenient graphical tool that comes with Git for Windows. Its target audience is users who are uncomfortable with using Git on the command-line. Git GUI has a function to clone repositor...
How severe is CVE-2022-41953?
CVE-2022-41953 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-41953?
Check the references section above for vendor advisories and patch information. Affected products include: Git-Scm Git, Microsoft Windows.