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/lucene4.10-4.10.4+dfsg/misc/src/java/org/apache/lucene/store/NativePosixUtil.cpp
Examining data/lucene4.10-4.10.4+dfsg/misc/src/java/org/apache/lucene/store/WindowsDirectory.cpp

FINAL RESULTS:

data/lucene4.10-4.10.4+dfsg/misc/src/java/org/apache/lucene/store/NativePosixUtil.cpp:132:7:  [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).
	fd = open(fname, O_RDONLY | DIRECT_FLAG);
data/lucene4.10-4.10.4+dfsg/misc/src/java/org/apache/lucene/store/NativePosixUtil.cpp:137:7:  [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).
	fd = open(fname, O_RDWR | O_CREAT | DIRECT_FLAG, 0666);
data/lucene4.10-4.10.4+dfsg/misc/src/java/org/apache/lucene/store/WindowsDirectory.cpp:117:5:  [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 buffer[length];

ANALYSIS SUMMARY:

Hits = 3
Lines analyzed = 521 in approximately 1.24 seconds (422 lines/second)
Physical Source Lines of Code (SLOC) = 330
Hits@level = [0]   0 [1]   0 [2]   3 [3]   0 [4]   0 [5]   0
Hits@level+ = [0+]   3 [1+]   3 [2+]   3 [3+]   0 [4+]   0 [5+]   0
Hits/KSLOC@level+ = [0+] 9.09091 [1+] 9.09091 [2+] 9.09091 [3+]   0 [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.