Merge pull request #1798 from Exiv2/mergify/bp/main/pr-1789

&bytes[0] (std::vector) will crash if bytes has zero elements (backport #1789)

tests/bugfixes/github/test_issue_g44w_q3vm_gwjq.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+
+from system_tests import CaseMeta, CopyTmpFiles, path, check_no_ASAN_UBSAN_errors
+import unittest
+
+@unittest.skip("Skipping test using option -pR (only for Debug mode)")
+class ImagePrintIFDStructureZeroCountAssert(metaclass=CaseMeta):
+    """
+    Regression test for the bug described in:
+    https://github.com/Exiv2/exiv2/security/advisories/GHSA-g44w-q3vm-gwjq
+    """
+    url = "https://github.com/Exiv2/exiv2/security/advisories/GHSA-g44w-q3vm-gwjq"
+
+    filename = path("$data_path/issue_ghsa_g44w_q3vm_gwjq_poc.jpg")
+    commands = ["$exiv2 -pR $filename"]
+    stderr = ["""invalid type in tiff structure0
+Exiv2 exception in print action for file $filename:
+$kerInvalidTypeValue
+"""]
+    retval = [1]
+
+    compare_stdout = check_no_ASAN_UBSAN_errors