GHSA-wq63-vh5h-pr5p
uutils coreutils has a UNIX Symbolic Link (Symlink) Following issue
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
A logic error in the ln utility of uutils coreutils allows the utility to dereference a symbolic link target even when the --no-dereference (or -n) flag is explicitly provided. The implementation previously only honored the "no-dereference" intent if the --force (overwrite) mode was also enabled. This flaw causes ln to follow a symbolic link that points to a directory and create new links inside that target directory instead of treating the symbolic link itself as the destination. In environments where a privileged user or system script uses ln -n to update a symlink, a local attacker could manipulate existing symbolic links to redirect file creation into sensitive directories, potentially leading to unauthorized file creation or system misconfiguration.
References
External links from the advisory. They lead to third-party sites.