CVE-2024-32020

A vulnerability was found in Git. This flaw allows an unauthenticated attacker to place a specialized repository on their target's local system. For performance reasons, Git uses hardlinks when cloning a repository located on the same disk. However, if the repo being cloned is owned by a different user, this can introduce a security risk. At any time in the future, the original repo owner could rewrite the hardlinked files in the cloned user's repo.

This vulnerability presents a Low severity issue due to its contextual constraints and limited impact potential. Primarily affecting local Git repository clones where source and target repositories reside on the same disk, the risk arises only when the source repository is owned by a different, potentially untrusted user. This scenario necessitates specific conditions for exploitation, such as shared access to the disk among multiple users. Moreover, the impact is localized to the affected repositories and does not extend to the broader system or network. While the integrity of the target repository may be compromised if the untrusted user modifies linked files, the scope of influence is contained within the repository structure.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.