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compat_urllib_parse_unquote: crash fix: only decode valid hex
[youtube-dl]
/
youtube_dl
/
compat.py
diff --git
a/youtube_dl/compat.py
b/youtube_dl/compat.py
index c3783337a5a801cd5230f2ae2f5d82112d4b6cea..1f4ccf443214d322121938cca58150f9aaa8803f 100644
(file)
--- a/
youtube_dl/compat.py
+++ b/
youtube_dl/compat.py
@@
-94,6
+94,8
@@
except ImportError:
try:
if not item:
raise ValueError
+ if not re.match('[0-9a-fA-F][0-9a-fA-F]',item[:2]):
+ raise ValueError
pct_sequence += item[:2].decode('hex')
rest = item[2:]
if not rest: