Add CVE regex in helpers.py

Signed-off-by: Shivam Sandbhor <shivam.sandbhor@gmail.com>

Author: sbs2001

vulnerabilities/helpers.py

@@ -21,6 +21,7 @@
 #  Visit https://github.com/nexB/vulnerablecode/ for support and download.
 
 import json
+import re
 
 import yaml
 import requests
@@ -61,3 +62,6 @@ def create_etag(data_src, url, etag_key):
 
     data_src.config.etags[url] = etag
     return True
+
+
+is_cve = re.compile(r"CVE-\d+-\d+", re.IGNORECASE).match

vulnerabilities/importers/project_kb_msr2019.py

@@ -35,6 +35,7 @@
 from vulnerabilities.data_source import Reference
 from vulnerabilities.data_source import DataSourceConfiguration
 from vulnerabilities.helpers import create_etag
+from vulnerabilities.helpers import is_cve
 
 
 @dataclasses.dataclass
@@ -69,7 +70,7 @@ def to_advisories(csv_reader):
             vuln_id, proj_home, fix_commit, _ = row
             commit_link = proj_home + "/commit/" + fix_commit
 
-            if re.compile(r"CVE-\d+-\d+").match(vuln_id):
+            if is_cve(vuln_id):
                 reference = Reference(url=commit_link)
 
             else: