I've also posted this to my blog:
http://hboeck.de/archives/578-How-long-does-it-take-to-fix-a-crash-bug.html
About one year ago, Sam Hocevar posted some results on tests with his fuzzing
tool zzuf, which showed a large number of crashes in various applications,
especially multimedia apps.
http://sam.zoy.org/blog/2007-01-16-exposing-file-parsing-vulnerabilities
http://sam.zoy.org/zzuf/
Crash bugs on invalid input very often lead to security issues, thus this
should be taken seriously.
Now, I took the freedom to have a look how many of the issues found back then
were fixed. I used the most current versions in gentoo linux
(testing/~x86-system), which tend to be quite up-to-date. I also
cross-checked the crashes for other apps, as they often use the same or
similar code.
Seems only vlc devs did their homework (Sam Hocevar is part of the vlc team).
Interesting enough, even firefox seems to have a gif-crasher since a year.
gstreamer crash by lol-ffplay.mpg lol-gstreamer.m2v lol-mplayer.m2v
lol-mplayer.mpg lol-vlc.m2v lol-vlc.mpg
endless loop by lol-ffplay.m2v lol-xine.mpg
mplayer hang by lol-mplayer.wmv,
crash by lol-ffplay.flac lol-mplayer.aac lol-mplayer.mpg lol-mplayer.ogg
lol-ogg123.flac lol-vlc.aac lol-xine.aac
xine crash by lol-mplayer.wmv lol-ffplay.m2v lol-ffplay.ogg lol-ffplay.wmv
lol-gstreamer.avi lol-ogg123.flac lol-vlc.aac lol-xine.mpg
firefox crash by lol-firefox.gif
--
Hanno Böck Blog: http://www.hboeck.de/
GPG: 3DBD3B20 Jabber/Mail: hanno_at_hboeck.de
Received on Jan 11 2008
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