Flawfinder version 2.0.10, (C) 2001-2019 David A. Wheeler. Number of rules (primarily dangerous function names) in C/C++ ruleset: 223 Examining data/gnome-font-viewer-3.34.0/src/font-model.h Examining data/gnome-font-viewer-3.34.0/src/font-thumbnailer.c Examining data/gnome-font-viewer-3.34.0/src/font-view.c Examining data/gnome-font-viewer-3.34.0/src/open-type-layout.h Examining data/gnome-font-viewer-3.34.0/src/sushi-font-widget.h Examining data/gnome-font-viewer-3.34.0/src/totem-resources.c Examining data/gnome-font-viewer-3.34.0/src/totem-resources.h Examining data/gnome-font-viewer-3.34.0/src/font-model.c Examining data/gnome-font-viewer-3.34.0/src/font-utils.c Examining data/gnome-font-viewer-3.34.0/src/font-utils.h Examining data/gnome-font-viewer-3.34.0/src/sushi-font-loader.c Examining data/gnome-font-viewer-3.34.0/src/sushi-font-loader.h Examining data/gnome-font-viewer-3.34.0/src/sushi-font-widget.c FINAL RESULTS: data/gnome-font-viewer-3.34.0/src/font-view.c:958:40: [3] (buffer) g_get_home_dir: This function is synonymous with 'getenv("HOME")';it returns untrustable input if the environment can beset by an attacker. It can have any content and length, and the same variable can be set more than once (CWE-807, CWE-20). Check environment variables carefully before using them. home_prefix = g_file_new_for_path (g_get_home_dir ()); data/gnome-font-viewer-3.34.0/src/sushi-font-widget.c:297:12: [3] (random) g_random_int_range: This function is not sufficiently random for security-related functions such as key and nonce creation (CWE-327). Use a more secure technique for acquiring random values. rand = g_random_int_range (0, total_chars); data/gnome-font-viewer-3.34.0/src/font-view.c:277:49: [1] (buffer) strlen: Does not handle strings that are not \0-terminated; if given one it may perform an over-read (it could cause a crash if unprotected) (CWE-126). strlen (thumb_uri)); data/gnome-font-viewer-3.34.0/src/font-view.c:411:13: [1] (buffer) strlen: Does not handle strings that are not \0-terminated; if given one it may perform an over-read (it could cause a crash if unprotected) (CWE-126). if (strlen (str) == 0 && data/gnome-font-viewer-3.34.0/src/font-view.c:412:42: [1] (buffer) strlen: Does not handle strings that are not \0-terminated; if given one it may perform an over-read (it could cause a crash if unprotected) (CWE-126). ((split[idx + 1] == NULL) || strlen (split[idx + 1]) == 0)) data/gnome-font-viewer-3.34.0/src/font-view.c:435:12: [1] (buffer) strlen: Does not handle strings that are not \0-terminated; if given one it may perform an over-read (it could cause a crash if unprotected) (CWE-126). ptr += strlen (MATCH_VERSION_STR); data/gnome-font-viewer-3.34.0/src/sushi-font-widget.c:116:49: [1] (buffer) strlen: Does not handle strings that are not \0-terminated; if given one it may perform an over-read (it could cause a crash if unprotected) (CWE-126). text, 0, strlen (text), ANALYSIS SUMMARY: Hits = 7 Lines analyzed = 3849 in approximately 0.17 seconds (23141 lines/second) Physical Source Lines of Code (SLOC) = 2826 Hits@level = [0] 0 [1] 5 [2] 0 [3] 2 [4] 0 [5] 0 Hits@level+ = [0+] 7 [1+] 7 [2+] 2 [3+] 2 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 2.477 [1+] 2.477 [2+] 0.707714 [3+] 0.707714 [4+] 0 [5+] 0 Dot directories skipped = 1 (--followdotdir overrides) Minimum risk level = 1 Not every hit is necessarily a security vulnerability. There may be other security vulnerabilities; review your code! See 'Secure Programming HOWTO' (https://dwheeler.com/secure-programs) for more information.