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/libudfread-1.1.0/examples/udfcat.c Examining data/libudfread-1.1.0/examples/udfls.c Examining data/libudfread-1.1.0/src/blockinput.h Examining data/libudfread-1.1.0/src/default_blockinput.c Examining data/libudfread-1.1.0/src/default_blockinput.h Examining data/libudfread-1.1.0/src/ecma167.c Examining data/libudfread-1.1.0/src/ecma167.h Examining data/libudfread-1.1.0/src/udfread-version.c Examining data/libudfread-1.1.0/src/udfread.c Examining data/libudfread-1.1.0/src/udfread.h FINAL RESULTS: data/libudfread-1.1.0/examples/udfls.c:48:13: [4] (buffer) sprintf: Does not check for buffer overflows (CWE-120). Use sprintf_s, snprintf, or vsnprintf. sprintf(next_dir, "%s%s/", path, dirent.d_name); data/libudfread-1.1.0/src/ecma167.c:33:27: [4] (format) fprintf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. #define ecma_error(...) fprintf(stderr, "ecma: " __VA_ARGS__) data/libudfread-1.1.0/src/udfread.c:54:49: [4] (format) fprintf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. #define udf_error(...) do { fprintf(stderr, "udfread ERROR: " __VA_ARGS__); } while (0) data/libudfread-1.1.0/src/udfread.c:55:49: [4] (format) fprintf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. #define udf_log(...) do { if (enable_log) fprintf(stderr, "udfread LOG : " __VA_ARGS__); } while (0) data/libudfread-1.1.0/src/udfread.c:56:49: [4] (format) fprintf: If format strings can be influenced by an attacker, they can be exploited (CWE-134). Use a constant for the format specification. #define udf_trace(...) do { if (enable_trace) fprintf(stderr, "udfread TRACE: " __VA_ARGS__); } while (0) data/libudfread-1.1.0/src/udfread.c:78:9: [3] (misc) InitializeCriticalSection: Exceptions can be thrown in low-memory situations. Use InitializeCriticalSectionAndSpinCount instead. InitializeCriticalSection(&cs); data/libudfread-1.1.0/src/udfread.c:81:5: [3] (misc) EnterCriticalSection: On some versions of Windows, exceptions can be thrown in low-memory situations. Use InitializeCriticalSectionAndSpinCount instead. EnterCriticalSection(&cs); data/libudfread-1.1.0/src/udfread.c:736:9: [3] (buffer) getenv: Environment variables are untrustable input if they can be set by an attacker. They 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. if (getenv("UDFREAD_LOG")) { data/libudfread-1.1.0/src/udfread.c:739:9: [3] (buffer) getenv: Environment variables are untrustable input if they can be set by an attacker. They 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. if (getenv("UDFREAD_TRACE")) { data/libudfread-1.1.0/src/default_blockinput.c:175:13: [2] (misc) open: 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). p->fd = open(path, O_RDONLY | O_BINARY); data/libudfread-1.1.0/src/default_blockinput.c:177:13: [2] (misc) open: 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). p->fd = open(path, O_RDONLY); data/libudfread-1.1.0/src/ecma167.c:53:5: [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(str, p, length); data/libudfread-1.1.0/src/ecma167.c:67:5: [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(eid->identifier, p + 1, 23); data/libudfread-1.1.0/src/ecma167.c:68:5: [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(eid->identifier_suffix, p + 24, 8); data/libudfread-1.1.0/src/ecma167.c:106:5: [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(pvd->volume_set_identifier, p + 72, 128); data/libudfread-1.1.0/src/ecma167.c:142:5: [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(lvd->contents_use, p + 248, 16); data/libudfread-1.1.0/src/ecma167.c:158:5: [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(lvd->partition_map_table, p + 440, map_size); data/libudfread-1.1.0/src/ecma167.c:193:9: [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(fi->filename, p + 38 + l_iu, fi->filename_len); data/libudfread-1.1.0/src/ecma167.c:332:9: [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(fe->u.data.content, p + p_ad, l_ad); data/libudfread-1.1.0/src/udfread.c:121:9: [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(p, s, len + 1); data/libudfread-1.1.0/src/udfread.c:729:5: [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 volume_set_identifier[128]; data/libudfread-1.1.0/src/udfread.c:1237:5: [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(udf->volume_set_identifier, vds.pvd.volume_set_identifier, 128); data/libudfread-1.1.0/src/udfread.c:1308:9: [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(buffer, udf->volume_set_identifier, size); data/libudfread-1.1.0/src/udfread.c:1647:9: [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(buf, p->block + pos_off, chunk_size); data/libudfread-1.1.0/src/udfread.c:1668:5: [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(buf, p->block, bytes); data/libudfread-1.1.0/src/udfread.c:1689:9: [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(buf, &p->fe->u.data.content[p->pos], bytes - pad_size); data/libudfread-1.1.0/examples/udfls.c:43:38: [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). next_dir = (char*)malloc(strlen(path) + strlen(dirent.d_name) + 2); data/libudfread-1.1.0/examples/udfls.c:43:53: [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). next_dir = (char*)malloc(strlen(path) + strlen(dirent.d_name) + 2); data/libudfread-1.1.0/src/blockinput.h:46:16: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). int (*read) (udfread_block_input *, uint32_t lba, void *buf, uint32_t nblocks, int flags); data/libudfread-1.1.0/src/default_blockinput.c:91:18: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). result = read(fd, buf, count); data/libudfread-1.1.0/src/udfread.c:118:18: [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). size_t len = strlen(s); data/libudfread-1.1.0/src/udfread.c:230:45: [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). return (!memcmp(value, eid->identifier, strlen(value))) ? 0 : -1; data/libudfread-1.1.0/src/udfread.c:257:21: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). result = input->read(input, lba, buf, nblocks, flags); data/libudfread-1.1.0/src/udfread.c:1213:35: [1] (buffer) read: Check buffer boundaries if used in a loop including recursive loops (CWE-120, CWE-20). if (!udf || !input || !input->read) { ANALYSIS SUMMARY: Hits = 34 Lines analyzed = 3263 in approximately 0.10 seconds (31972 lines/second) Physical Source Lines of Code (SLOC) = 2038 Hits@level = [0] 16 [1] 8 [2] 17 [3] 4 [4] 5 [5] 0 Hits@level+ = [0+] 50 [1+] 34 [2+] 26 [3+] 9 [4+] 5 [5+] 0 Hits/KSLOC@level+ = [0+] 24.5339 [1+] 16.683 [2+] 12.7576 [3+] 4.41609 [4+] 2.45339 [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.