Integer overflow in the openpsfile function in gsinterf.c for Jan Kybic BitMap Viewer (BMV) 1.2 allows local users to execute arbitrary code via a PostScript (PS) file containing a large number of pages value, which leads to a resultant buffer overflow.

Stack-based buffer overflow in the vgasco_printf function in Jan Kybic BitMap Viewer (BMV) 1.2, when compiled with the M_UNIX flag and running setuid, allows local users to gain privileges via a long filename in the -b command line option.