lha -- numerous vulnerabilities when extracting archives

Source code reviews of lha by Lukasz Wojtow, Thomas Biege,
and others uncovered a number of vulnerabilities affecting
lha:

Buffer overflows when handling archives and filenames.
(CVE-2004-0694)
Possible command execution via shell meta-characters when
built with NOMKDIR. (CVE-2004-0745)
Buffer overflow resulting in arbitrary code execution when
handling long pathnames in LHZ archives. (CVE-2004-0769)
Buffer overflow in the extract_one. (CVE-2004-0771)