[Python-bugs-list] [ python-Bugs-500401 ] Security fix: webbrowser.py

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Mon, 07 Jan 2002 07:32:07 -0800


Bugs item #500401, was opened at 2002-01-07 06:28
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Category: Python Library
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 9
Submitted By: Gregor Hoffleit (flight)
Assigned to: Fred L. Drake, Jr. (fdrake)
Summary: Security fix: webbrowser.py

Initial Comment:
Chris Lawrence <lawrencc@debian.org> reports a security
hole in webbrowser.py (cf.
http://bugs.debian.org/127507 for the full report):

webbrowser.py doesn't escape the URL when calling the
browser through os.system(). This makes it possible for
an attacker to execute arbitrary code in /bin/sh.

Attached is a patch by Chris that closes the holes.

    Gregor


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>Comment By: Fred L. Drake, Jr. (fdrake)
Date: 2002-01-07 07:32

Message:
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Fixed in Lib/webbrowser.py 1.27, 1.26.6.1, and 1.18.2.3 (to
be part of Python versions 2.1.2, 2.2.1, and 2.3).

Would someone who understands the Debian bug reporting
system please pass the word to them?  Thanks!

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Comment By: Guido van Rossum (gvanrossum)
Date: 2002-01-07 07:09

Message:
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Let's also get the fix into 2.1.2 and 2.2.1.

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