Red Hat Bugzilla – Bug 885893
CVE-2012-6303 tcl-snack: multiple buffer overflows
Last modified: 2018-03-01 15:16:04 EST
CVE-2012-6303 was assigned by MITRE to multiple buffer overflows in WaveSurfer (not shipped) and the Snack Sound Toolkit (tcl-snack):
Product source: http://www.speech.kth.se/snack/
(The www.speech.kth.se site refers to "Snack v2.2.10
released December 01 Bug fix release" but this is
apparently about December 01 2004 -- not about a 2012
No fix is available as of yet.
Also note that the only things that use tcl-snack in Fedora is amsn and coccinella, but I couldn't find a way to change the sounds that play, which means the end user would need to download this crafted sound file from somewhere and associate it as a sound in either program somehow (possibly these IM clients will play remote sounds as well, not sure). Also, there is a python-snack that makes use of tcl-snack, but I'm unaware of any programs that use python-snack.
Created tcl-snack tracking bugs for this issue
Affects: fedora-all [bug 885894]
Created attachment 671186 [details]
Proposed patch by Michael Karcher to fix CVE-2012-6303
I am attaching a patch created by Michael Karcher which fixes the problem. I have tested his patch on Debian with libsnack 2.2.10 and WaveSurfer 1.8.8p3, the crashes do no longer occur.
I have uploaded the updated snack package into Debian already. Please review and hopefully apply the patch in Fedora as well.
tcl-snack-2.2.10-17.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.
tcl-snack-2.2.10-17.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.
tcl-snack-2.2.10-17.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.
The previous private comment is for informational and documentation purposes only. The specific format will be used by another tool.
Not sure if this bug should still be "Status = New" though.