Fedora 26: Git Shell Unsafe Input Issue Resolved - Moderate Severity

Git is a fast, scalable, distributed revision control system with an

unusually rich command set that provides both high-level operations

and full access to internals.

The git rpm installs common set of tools which are usually using with

small amount of dependencies. To install all git packages, including

tools for integrating with other SCMs, install the git-all meta-package.

These releases are about hardening `git shell` that is used on servers against

an unsafe user input, which `git cvsserver` copes with poorly. From the release

notes: * "git cvsserver" no longer is invoked by "git shell" by default,

as it is old and largely unmaintained. * Various Perl scripts did not

use safe_pipe_capture() instead of backticks, leaving them susceptible to

end-user input. They have been corrected. Credits go to

joernchen for finding the unsafe constructs in "git

cvsserver", and to Jeff King at GitHub for finding and fixing instances of

the same issue in other scripts. References:

su -c 'dnf upgrade git' at the command line.

For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

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