Bug 431529 - CVE-2008-0553 tk: GIF handling buffer overflow [rawhide]
Summary: CVE-2008-0553 tk: GIF handling buffer overflow [rawhide]
Keywords:
Status: CLOSED NEXTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: perl-Tk
Version: rawhide
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Andreas Bierfert
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: source=redhat,reported=20080124,publi...
Depends On:
Blocks: CVE-2008-0553
TreeView+ depends on / blocked
 
Reported: 2008-02-05 10:50 UTC by Andreas Bierfert
Modified: 2008-02-05 11:39 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2008-02-05 11:39:17 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Andreas Bierfert 2008-02-05 10:50:21 UTC 
+++ This bug was initially created as a clone of Bug #431518 +++

tk GIF handling code is based on the same code as used by gd and SDL_image and
is affected by the overflow known as CVE-2006-4484 and CVE-2007-6697.

ReadImage function in tkImgGIF.c does not properly check the value of
initialCodeSize value read from GIF image before using it as upper bound during
the initialization of append array.  This can result in stack buffer overflow.

Upstream fix:
http://tktoolkit.cvs.sourceforge.net/tktoolkit/tk/generic/tkImgGIF.c?r1=1.40&r2=1.41

This is expected to be included in upstream tk version 8.5.1.

Related issues:
CVE-2006-4484 (gd), CVE-2007-6697 (SDL_image), CVE-2008-0554 (netpbm)

-- Additional comment from thoger on 2008-02-05 03:55 EST --
perl-Tk uses embedded copy of tk source code and is affected by this problem
too.  Adding perl-Tk maintainers to the CC list too.

-- Additional comment from mmaslano on 2008-02-05 03:58 EST --
Tk is fixed in rawhide, F-8, F-7. The upstream fix was used.
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