New submission from Jason Williams <[EMAIL PROTECTED]>: email/header.py:decode_header() Line 95: dec = email.base64mime.decode(encoded)
Headers that contain Subject or From headers which are Base64 encoded and are insufficiently padded raise a HeaderParseError. The actual padding error is begin generated in binascii.a2b_base64 and bubbling up as a HeaderParseError in header.py. decode_header() should detect the padding error (Base64 text length does not evenly divide by 3) and automatically add padding before handing off to a2b_base64. The problem usually occurs with spam. Example problem header: Subject: =?iso-8859-1?B? UHJldmVudCBGb3JlY2xvc3VyZSAmIFNhdmUgWW91ciBIb21lIA=?= Properly Padded: Subject: =?iso-8859-1?B? UHJldmVudCBGb3JlY2xvc3VyZSAmIFNhdmUgWW91ciBIb21lIA==?= ---------- components: Library (Lib) messages: 68553 nosy: jasonjwwilliams severity: normal status: open title: email/header.py doesn't handle Base64 headers that have been insufficiently padded. type: behavior versions: Python 2.5 _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue3169> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
