Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Uutils / coreutils | affected 0 before 0.8.0 |
CWE
CWE-61
References
- https://github.com/uutils/coreutils/pull/11253
- https://github.com/uutils/coreutils/releases/tag/0.8.0
ADP enrichment
No English description supplied.
No references supplied.