GHSA-FR8X-3VFX-F45H gix and gitoxide: unvalidated submodule name traverses out of .git/modules and redirects state() / open() to another repository

Summary attachments: pocs.zip Submodule names coming from .gitmodules are exposed as unvalidated names and are later reused to derive the submodule git directory as: /modules/ Because the submodule name is joined directly as a filesystem path component, a name such as ../../../escaped-target.git...

SUSE CVE-2017-1000117

A malicious third-party can give a crafted "ssh://..." URL to an unsuspecting victim, and an attempt to visit the URL can result in any program that exists on the victim's machine being executed. Such a URL could be placed in the .gitmodules file of a malicious project, and an unsuspecting victim...

ALPINE-CVE-2018-11235

In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1, remote code execution can occur. With a crafted .gitmodules file, a malicious project can execute an arbitrary script on a machine that runs "git clone --recurse-submodules" because...