RHSA-2008:0135: Moderate: tk security update

First published: Thu Feb 21 2008(Updated: )

Tk is a graphical toolkit for the Tcl scripting language.<br>An input validation flaw was discovered in Tk's GIF image handling. A<br>code-size value read from a GIF image was not properly validated before<br>being used, leading to a buffer overflow. A specially crafted GIF file<br>could use this to cause a crash or, potentially, execute code with the<br>privileges of the application using the Tk graphical toolkit.<br>(CVE-2008-0553)<br>A buffer overflow flaw was discovered in Tk's animated GIF image handling.<br>An animated GIF containing an initial image smaller than subsequent images<br>could cause a crash or, potentially, execute code with the privileges of<br>the application using the Tk library. (CVE-2007-5378)<br>All users are advised to upgrade to these updated packages which contain a<br>backported patches to resolve these issues.

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