fix: improve pango checker (#2986)

Improve pango checker to avoid false positives with upcoming emacs
checker

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

Author: ffontaine

cve_bin_tool/checkers/pango.py

@@ -16,5 +16,8 @@
 class PangoChecker(Checker):
     CONTAINS_PATTERNS: list[str] = []
     FILENAME_PATTERNS: list[str] = []
-    VERSION_PATTERNS = [r"([0-9]+\.[0-9]+\.[0-9]+)\r?\n[pP]ango"]
+    VERSION_PATTERNS = [
+        r"([0-9]+\.[0-9]+\.[0-9]+)\r?\n/etc/pango",
+        r"([0-9]+\.[0-9]+\.[0-9]+)\r?\nPango version",
+    ]
     VENDOR_PRODUCT = [("gnome", "pango"), ("pango", "pango")]

test/test_data/pango.py

@@ -2,11 +2,16 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 mapping_test_data = [
+    {
+        "product": "pango",
+        "version": "1.40.5",
+        "version_strings": ["1.40.5\n/etc/pango"],
+    },
     {
         "product": "pango",
         "version": "1.40.5",
         "version_strings": ["1.40.5\nPango version"],
-    }
+    },
 ]
 package_test_data = [
     {