Bug 150323 - CAN-2005-0761 Bug in parsing PSD files
CAN-2005-0761 Bug in parsing PSD files
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: ImageMagick (Show other bugs)
3.0
All Linux
medium Severity low
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Assigned To: Matthias Clasen
Mike McLean
impact=low,public=20040609,source=ven...
: Security
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2005-03-04 11:46 EST by Josh Bressers
Modified: 2007-11-30 17:07 EST (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2005-03-23 05:07:21 EST
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
Proposed patch for this issue. (9.37 KB, patch)
2005-03-04 11:49 EST, Josh Bressers
no flags Details | Diff
Demo exploit for this issue. (137.58 KB, application/octet-stream)
2005-03-04 11:49 EST, Josh Bressers
no flags Details

  None (edit)
Description Josh Bressers 2005-03-04 11:46:26 EST
This issue consists of two bugs:

- conversion from and to quantum, it probably worked only for quantumdepth=8,
  but ImageMagick was compiled with quantumdepth=16.
  The attached patch fixes it.

- The function ReadBlobByte returns values in range 0-255 or (int)-1 on EOF.
  The return value -1 is not checked on many places. The patch
  adds some type conversion, so that it does not crash on issue3.psd.
  However it could crash elsewhere.
Comment 1 Josh Bressers 2005-03-04 11:48:32 EST
This issue should also affect RHEL2.1
Comment 2 Josh Bressers 2005-03-04 11:49:06 EST
Created attachment 111669 [details]
Proposed patch for this issue.
Comment 3 Josh Bressers 2005-03-04 11:49:58 EST
Created attachment 111670 [details]
Demo exploit for this issue.
Comment 4 Matthias Clasen 2005-03-17 16:48:50 EST
This is covered by RHSA-2005:070-09
Comment 5 Mark J. Cox (Product Security) 2005-03-23 05:07:21 EST
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2005-070.html

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