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/gfxboot-4.5.2-1.1/bin2c.c Examining data/gfxboot-4.5.2-1.1/themes/openSUSE/talk/sc.c Examining data/gfxboot-4.5.2-1.1/addblack.c Examining data/gfxboot-4.5.2-1.1/gfxboot-compile.c Examining data/gfxboot-4.5.2-1.1/gfxboot-font.c FINAL RESULTS: data/gfxboot-4.5.2-1.1/gfxboot-compile.c:1787:5: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(buf, "%*s", ind, ""); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:1794:7: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(buf, "%*s", ind, ""); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:1801:3: [4] (buffer) strcat: Does not check for buffer overflows when concatenating to destination [MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or snprintf (warning: strncat is easily misused). strcat(buf, s); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:174:14: [3] (buffer) getopt_long: Some older implementations do not protect against internal buffer overflows (CWE-120, CWE-20). Check implementation on installation, or limit the size of all string inputs. while((i = getopt_long(argc, argv, "c:fhiL:l:Ov", options, NULL)) != -1) { data/gfxboot-4.5.2-1.1/gfxboot-font.c:189:14: [3] (buffer) getopt_long: Some older implementations do not protect against internal buffer overflows (CWE-120, CWE-20). Check implementation on installation, or limit the size of all string inputs. while((i = getopt_long(argc, argv, "Aa:c:f:H:l:p:st:v", options, NULL)) != -1) { data/gfxboot-4.5.2-1.1/addblack.c:56:7: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). f = fopen(name, "r"); data/gfxboot-4.5.2-1.1/addblack.c:117:27: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). f = strcmp(name, "-") ? fopen(name, "w") : stdout; data/gfxboot-4.5.2-1.1/addblack.c:143:5: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(d->data + d->size, buffer, size); data/gfxboot-4.5.2-1.1/addblack.c:156:12: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. unsigned char black[4] = { 12, 0, 0, 0 }; data/gfxboot-4.5.2-1.1/addblack.c:158:12: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. unsigned char c[1]; data/gfxboot-4.5.2-1.1/bin2c.c:10:14: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). if(!(f = fopen(argv[1], "r"))) { data/gfxboot-4.5.2-1.1/gfxboot-compile.c:64:8: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. static char *type_name[16] = { data/gfxboot-4.5.2-1.1/gfxboot-compile.c:155:1: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. char *lib_path[2] = { NULL, "/usr/share/gfxboot" }; data/gfxboot-4.5.2-1.1/gfxboot-compile.c:259:7: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). f = fopen(name, "r"); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:264:13: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). f = fopen(s, "r"); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:333:27: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). f = strcmp(name, "-") ? fopen(name, "w") : stdout; data/gfxboot-4.5.2-1.1/gfxboot-compile.c:402:12: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. unsigned char buf[4]; data/gfxboot-4.5.2-1.1/gfxboot-compile.c:423:5: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(d->data + d->size, buffer, size); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:489:3: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. char s[17]; data/gfxboot-4.5.2-1.1/gfxboot-compile.c:596:3: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. char s2[len + 1]; data/gfxboot-4.5.2-1.1/gfxboot-compile.c:614:10: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. static char buf[16]; data/gfxboot-4.5.2-1.1/gfxboot-compile.c:653:10: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. static char word[1024]; data/gfxboot-4.5.2-1.1/gfxboot-compile.c:778:3: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. char t[5][100]; data/gfxboot-4.5.2-1.1/gfxboot-compile.c:871:11: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(c->enc + 1 + u0, c->value.p, u1); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:983:34: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). if(log_file && *log_file) lf = fopen(log_file, "w"); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:1768:10: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. static char buf[10240] = {}; data/gfxboot-4.5.2-1.1/gfxboot-font.c:165:3: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. char obuf[4], ibuf[6]; data/gfxboot-4.5.2-1.1/gfxboot-font.c:166:3: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. char obuf2[4*0x100], ibuf2[0x100]; data/gfxboot-4.5.2-1.1/gfxboot-font.c:176:12: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. unsigned char char_ofs[5]; data/gfxboot-4.5.2-1.1/gfxboot-font.c:224:11: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(font->name, font_spec, s - font_spec); data/gfxboot-4.5.2-1.1/gfxboot-font.c:324:17: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). if((f = fopen(optarg, "r"))) { data/gfxboot-4.5.2-1.1/gfxboot-font.c:356:15: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(ibuf, ibuf + sizeof ibuf - ibuf_left, ibuf_left); data/gfxboot-4.5.2-1.1/gfxboot-font.c:615:7: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). f = fopen(name, "r"); data/gfxboot-4.5.2-1.1/gfxboot-font.c:769:5: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(d->data + d->size, buffer, size); data/gfxboot-4.5.2-1.1/gfxboot-font.c:783:27: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). f = strcmp(name, "-") ? fopen(name, "w") : stdout; data/gfxboot-4.5.2-1.1/gfxboot-font.c:1113:7: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(bitmap + i * width, cd->bitmap + dx + (i + dy) * cd->bitmap_width, width); data/gfxboot-4.5.2-1.1/gfxboot-font.c:1149:10: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. static char buf[16]; data/gfxboot-4.5.2-1.1/gfxboot-font.c:1293:12: [2] (buffer) char: Statically-sized arrays can be improperly restricted, leading to potential overflows or other issues (CWE-119!/CWE-120). Perform bounds checking, use functions that limit length, or ensure that the size is larger than the maximum possible length. unsigned char col[MAX_GRAY + 1]; data/gfxboot-4.5.2-1.1/gfxboot-font.c:1379:3: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(cd->data, buf, cd->data_len); data/gfxboot-4.5.2-1.1/gfxboot-font.c:1399:3: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(&fh, font_file->data, sizeof fh); data/gfxboot-4.5.2-1.1/gfxboot-font.c:1434:5: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(cd->data, font_file->data + ofs, cd->data_len); data/gfxboot-4.5.2-1.1/themes/openSUSE/talk/sc.c:73:3: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(fd_compr.data, &sh, sizeof (snd_header_t)); data/gfxboot-4.5.2-1.1/themes/openSUSE/talk/sc.c:90:7: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). f = fopen(name, "r"); data/gfxboot-4.5.2-1.1/themes/openSUSE/talk/sc.c:136:5: [2] (buffer) memcpy: Does not check for buffer overflows when copying to destination (CWE-120). Make sure destination can always hold the source data. memcpy(d->data + d->size, buffer, size); data/gfxboot-4.5.2-1.1/themes/openSUSE/talk/sc.c:150:27: [2] (misc) fopen: Check when opening files - can an attacker redirect it (via symlinks), force the opening of special file type (e.g., device files), move things around to create a race condition, control its ancestors, or change its contents? (CWE-362). f = strcmp(name, "-") ? fopen(name, "w") : stdout; data/gfxboot-4.5.2-1.1/bin2c.c:22:14: [1] (buffer) fgetc: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). while((i = fgetc(f)) != EOF) { data/gfxboot-4.5.2-1.1/gfxboot-compile.c:599:3: [1] (buffer) strncpy: Easily used incorrectly; doesn't always \0-terminate or check for invalid pointers [MS-banned] (CWE-120). strncpy(s2, s, len); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:766:5: [1] (buffer) strncpy: Easily used incorrectly; doesn't always \0-terminate or check for invalid pointers [MS-banned] (CWE-120). strncpy(word, start, n); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:781:7: [1] (buffer) sscanf: It's unclear if the %s limit in the format string is small enough (CWE-120). Check that the limit is sufficiently small, or use a different input function. n = sscanf(comment, " %99s %99s %99s %99s %99s", t[0], t[1], t[2], t[3], t[4]); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:865:16: [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). u1 = strlen(c->value.p) + 1; data/gfxboot-4.5.2-1.1/gfxboot-compile.c:1777:6: [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(buf) + strlen(s) >= sizeof buf - 1) { data/gfxboot-4.5.2-1.1/gfxboot-compile.c:1777:20: [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(buf) + strlen(s) >= sizeof buf - 1) { data/gfxboot-4.5.2-1.1/gfxboot-compile.c:1798:5: [1] (buffer) strcat: Does not check for buffer overflows when concatenating to destination [MS-banned] (CWE-120). Consider using strcat_s, strncat, strlcat, or snprintf (warning: strncat is easily misused). Risk is low because the source is a constant character. strcat(buf, " "); data/gfxboot-4.5.2-1.1/gfxboot-compile.c:1898:22: [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). buf = malloc(strlen((char *) data + i + u + 1) * 4 + 3); data/gfxboot-4.5.2-1.1/gfxboot-font.c:898:56: [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(sscanf(s, "%i - %i%n", &i, &j, &k) == 2 && k == strlen(s)) { ANALYSIS SUMMARY: Hits = 55 Lines analyzed = 3953 in approximately 0.22 seconds (18112 lines/second) Physical Source Lines of Code (SLOC) = 3134 Hits@level = [0] 201 [1] 10 [2] 40 [3] 2 [4] 3 [5] 0 Hits@level+ = [0+] 256 [1+] 55 [2+] 45 [3+] 5 [4+] 3 [5+] 0 Hits/KSLOC@level+ = [0+] 81.6847 [1+] 17.5495 [2+] 14.3586 [3+] 1.59541 [4+] 0.957243 [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.