Description
Archive::Tar versions before 3.08 for Perl extract hardlinks to attacker controlled paths outside the extraction directory. _make_special_file() passes the tar header's linkname to link() without validating it against absolute paths or .. segments, creating a hardlink that shares the victim file's inode. A subsequent write through the extracted name modifies the victim file, and the post-extraction chmod, chown, and utime block in _extract_file() (guarded only against symlinks via -l) applies the tar header's mode, owner, and timestamps to the shared inode during extraction alone.
Mitigation
Minimal update. May introduce new vulnerabilities or breaking changes.
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 debian 12 | | =5.36.0-10 || =5.36.0-7 || =5.36.0-7+deb12u1 || =5.36.0-7+deb12u2 || =5.36.0-7+deb12u3 || =5.36.0-8 || =5.36.0-9 || =5.38.0-1 || =5.38.0-2 || =5.38.0~rc2-1 || =5.38.2-1 || =5.38.2-2 || =5.38.2-3 || =5.38.2-3.1 || =5.38.2-3.2 || =5.38.2-3.2+hurd.1 || =5.38.2-4 || =5.38.2-5 || =5.40.0-1 || =5.40.0-2 || =5.40.0-3 || =5.40.0-4 || =5.40.0-5 || =5.40.0-6 || =5.40.0-7 || =5.40.0-8 || =5.40.0~rc1-1 || =5.40.1-1 || =5.40.1-2 || =5.40.1-3 || =5.40.1-4 || =5.40.1-5 || =5.40.1-6 || =5.40.1-7 || =5.42.0-1 || =5.42.0-2 || =5.42.0-3 || =5.42.2-1 |
 debian 11 | | =5.32.1-4 || =5.32.1-4+deb11u1 || =5.32.1-4+deb11u2 || =5.32.1-4+deb11u3 || =5.32.1-4+deb11u4 || =5.32.1-4+deb11u5 || =5.32.1-5 || =5.32.1-6 || =5.34.0-1 || =5.34.0-2 || =5.34.0-3 || =5.34.0-4 || =5.34.0-5 || =5.34.0~rc2-1 || =5.36.0-1 || =5.36.0-10 || =5.36.0-2 || =5.36.0-3 || =5.36.0-4 || =5.36.0-5 || =5.36.0-6 || =5.36.0-7 || =5.36.0-8 || =5.36.0-9 || =5.38.0-1 || =5.38.0-2 || =5.38.0~rc2-1 || =5.38.2-1 || =5.38.2-2 || =5.38.2-3 || =5.38.2-3.1 || =5.38.2-3.2 || =5.38.2-3.2+hurd.1 || =5.38.2-4 || =5.38.2-5 || =5.40.0-1 || =5.40.0-2 || =5.40.0-3 || =5.40.0-4 || =5.40.0-5 || =5.40.0-6 || =5.40.0-7 || =5.40.0-8 || =5.40.0~rc1-1 || =5.40.1-1 || =5.40.1-2 || =5.40.1-3 || =5.40.1-4 || =5.40.1-5 || =5.40.1-6 || =5.40.1-7 || =5.42.0-1 || =5.42.0-2 || =5.42.0-3 || =5.42.2-1 |
 debian 13 | | =5.40.1-6 || =5.40.1-7 || =5.42.0-1 || =5.42.0-2 || =5.42.0-3 || =5.42.2-1 |
 debian 14 | | =5.40.1-6 || =5.40.1-7 || =5.42.0-1 || =5.42.0-2 || =5.42.0-3 || =5.42.2-1 |