Conformance Jpeg Crash

JPEG decoder and detailed analysis

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#21 Conformance Jpeg Crash

Milestone: v1.0_(example)

Status: closed-fixed

Owner: nobody

Labels: None

Priority: 5

Updated: 2014-09-11

Created: 2014-09-09

Creator: juliusfriedman

Private: No

The following image crashed JpegSnoop - http://www.w3.org/MarkUp/Test/xhtml-print/20050519/tests/jpeg444.jpg

Related

Discussion

Calvin Hass - 2014-09-10

Thanks for the example file to test.

This issue has been fixed in JPEGsnoop version v1.7.1

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Calvin Hass - 2014-09-10

status: open --> closed-fixed
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- juliusfriedman - 2014-09-10
  
  Awesome, where is the latest version?
  
  Was the fix in the decoder?
  
  On Wed, Sep 10, 2014 at 1:22 AM, Calvin Hass calvinhass@users.sf.net
  wrote:
  
  status: open --> closed-fixed
  
  [bugs:#21] http://sourceforge.net/p/jpegsnoop/bugs/21 Conformance Jpeg
  Crash *
  
  Status: closed-fixed
  Group: v1.0_(example)
  Created: Tue Sep 09, 2014 07:46 PM UTC by juliusfriedman
  Last Updated: Wed Sep 10, 2014 05:22 AM UTC
  Owner: nobody
  
  The following image crashed JpegSnoop -
  http://www.w3.org/MarkUp/Test/xhtml-print/20050519/tests/jpeg444.jpg
  
  Sent from sourceforge.net because you indicated interest in
  https://sourceforge.net/p/jpegsnoop/bugs/21/
  
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  Related
  
  Bugs: ~~#21~~
  
  alternate
  
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Calvin Hass - 2014-09-11

Hi Julius!

The fixed version (v1.7.1) will be posted at http://www.impulseadventure.com/photo/jpeg-snoop.html as soon as I have completed testing of other changes. I hope to have it released within a week.

FYI -- the issue was not in the image decoder itself. Rather, it was that the test file had an excessively long Identifier string in one of the JFIF marker segments. The code has now increased the bounds and properly limits them as required.

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