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/lemonbar-1.3/lemonbar.c FINAL RESULTS: data/lemonbar-1.3/lemonbar.c:1292:18: [3] (buffer) getopt: 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 ((ch = getopt(argc, argv, "hg:bdf:a:pu:B:F:U:n:")) != -1) { data/lemonbar-1.3/lemonbar.c:702:9: [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(ret->width_lut, xcb_query_font_char_infos(font_info), lut_size); data/lemonbar-1.3/lemonbar.c:1269:5: [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 input[4096] = {0, }; data/lemonbar-1.3/lemonbar.c:677:45: [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). cookie = xcb_open_font_checked(c, font, strlen(pattern), pattern); data/lemonbar-1.3/lemonbar.c:743:48: [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). atom_cookie[i] = xcb_intern_atom(c, 0, strlen(atom_names[i]), atom_names[i]); data/lemonbar-1.3/lemonbar.c:1215:110: [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). xcb_change_property(c, XCB_PROP_MODE_REPLACE, mon->window, XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 8 ,strlen(wm_name), wm_name); data/lemonbar-1.3/lemonbar.c:1385:75: [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). (void)write(STDOUT_FILENO, area->cmd, strlen(area->cmd)); ANALYSIS SUMMARY: Hits = 7 Lines analyzed = 1407 in approximately 0.11 seconds (12621 lines/second) Physical Source Lines of Code (SLOC) = 1065 Hits@level = [0] 22 [1] 4 [2] 2 [3] 1 [4] 0 [5] 0 Hits@level+ = [0+] 29 [1+] 7 [2+] 3 [3+] 1 [4+] 0 [5+] 0 Hits/KSLOC@level+ = [0+] 27.23 [1+] 6.57277 [2+] 2.8169 [3+] 0.938967 [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.