In GNU Libextractor 1.4, there is an integer signedness error for the chunk size in the EXTRACTOR_nsfe_extract_method function in plugins/nsfe_extractor.c, leading to an infinite loop for a crafted size.Referenceshttp://lists.gnu.org/archive/html/bug-libextractor/2017-10/msg00005.htmlhttps://ftp.gnu.org/gnu/libextractor/libextractor-1.6.tar.gzhttps://lists.debian.org/debian-lts-announce/2017/12/msg00000.html