fix: update opkg parser

Update opkg version pattern to handle prpl packages (openWRT flavor)

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

Author: ffontaine

cve_bin_tool/parsers/opkg.py

@@ -39,9 +39,10 @@ def run_checker(self, filename):
             if cpe_id is None:
                 self.logger.debug(f"{filename} doesn't contain any CPE-ID")
                 return
-            # version is always suffixed by a digit (e.g. 2.90-1 instead of 2.90)
+            # version is always suffixed (e.g. 2.90-r1 instead of 2.90)
+            # it can sometimes be prefixed (e.g. gen_2.90_v0.2.3-r1)
             version = search(
-                compile(r"^Version: (.+)-([0-9\.]+)$", MULTILINE), lines
+                compile(r"^Version: [a-z_]*([0-9_\-\.]+)[-_]+", MULTILINE), lines
             ).group(1)
             vendor, product, _ = decode_cpe22(f"{cpe_id.group(1)}:{version}")
             vendorlist: list[ScanInfo] = [