Multiple buffer overflows in man-db 2.4.1 and earlier, when installed setuid, allow local users to gain privileges via (1) MANDATORYMANPATH, MANPATHMAP, and MANDBMAP arguments to addtodirlist in manp.c, (2) a long pathname to ultsrc in ultsrc.c, (3) a long .so argument to testforinclude in ultsrc.c, (4) a long MANPATH environment variable, or (5) a long PATH environment variable.