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Date: Wed, 25 Apr 2012 09:56:06 +0300
From: Henri Salo <henri@...v.fi>
To: oss-security@...ts.openwall.com
Subject: Re: CVE Request: Python 3.2/3.3 utf-16 decoder
unicode_decode_call_errorhandler aligned_end is not updated
On Wed, Apr 25, 2012 at 12:37:53AM -0600, Kurt Seifried wrote:
> On 04/25/2012 12:35 AM, Kurt Seifried wrote:
> > Python 3.2/3.3 utf-16 decoder unicode_decode_call_errorhandler
> > aligned_end is not updated
> >
> > does not appear to affect Python 2.x
> >
> > memory leak/crashes/etc.
> >
> > http://bugs.python.org/issue14579
> >
> > Author: Serhiy Storchaka (storchaka) Date: 2012-04-14 18:46
> >
> > In the utf-16 decoder after calling
> > unicode_decode_call_errorhandler aligned_end is not updated. This
> > may potentially cause data leaks, memory damage, and crash. The bug
> > introduced by implementation of the issue #4868. In a similar
> > situation in the utf-8 decoder aligned_end is updated.
> >
> > ========
> >
> > More discussion and links to the patches/etc. in the bug.
> >
>
> Please use CVE-2012-2135 for this issue.
Reported to Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=670389
- Henri Salo
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