From ed09905c340e50342dfd4efc7ecc2b14d42c2fa7 Mon Sep 17 00:00:00 2001
From: cccs-kevin <kevin.hardy-cooper@cyber.gc.ca>
Date: Wed, 10 Apr 2024 13:44:38 +0000
Subject: [PATCH] Protect when mismatch between leading_char_index and length
 of decoded_match_string

---
 jsjaws.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/jsjaws.py b/jsjaws.py
index 6a7cb576..4f6d6e6f 100755
--- a/jsjaws.py
+++ b/jsjaws.py
@@ -875,6 +875,8 @@ def log_and_replace(match) -> bytes:
                 decoded_match_string = match.string.decode()
             except UnicodeDecodeError:
                 return
+            if leading_char_index > len(decoded_match_string):
+                return
             leading_char = decoded_match_string[leading_char_index]
             return f"{leading_char}[{property_name}] = {property_value};".encode()