CVE-2008-3964: Off-by-one Error

Multiple off-by-one errors in libpng before 1.2.32beta01, and 1.4 before 1.4.0beta34, allow context-dependent attackers to cause a denial of service crash or have unspecified other impact via a PNG image with crafted zTXt chunks, related to 1 the pngpushreadzTXt function in pngread.c, and possibl...