fix: fix false positives with filename patterns (#2521)

Use match instead of search to only detect a match at the beginning of
the filename for FILENAME_PATTERNS otherwise false positives will be
raised. For example:
 - named (i.e. bind) for systemd-hostnamed
 - eroute (i.e. openswan) for traceroute6
 - scp (i.e. openssh) for libxt_dscp.so
 - libc (i.e. glibc) for libuClibc.so

Signed-off-by: Fabrice Fontaine <[email protected]>

Author: ffontaine

cve_bin_tool/checkers/__init__.py

@@ -319,7 +319,7 @@ def guess_contains(self, lines):
     def get_version(self, lines, filename):
         version_info = dict()
 
-        if any(pattern.search(filename) for pattern in self.FILENAME_PATTERNS):
+        if any(pattern.match(filename) for pattern in self.FILENAME_PATTERNS):
             version_info["is_or_contains"] = "is"
 
         if "is_or_contains" not in version_info and self.guess_contains(lines):