Thursday, May 31. 2007
Game and Watch classics
Today I saw that in the Rewe supermarket, they sell remakes of old Nintendo Game and Watch games (called Mini Classics). For those who don't know, Game and Watch where early Nintendo Games, only one game in a device, with an lcd-screen.I bought the two classics Super Mario Bros. and Donkey Kong Junior (there were some others but none of them seemed to be of the original titles). I also have a quite nice collection of older Game and Watch titles, I think I might upload some pictures of them when I find time for it.
Posted by Hanno Böck
in Computer culture, English, Retro Games
at
00:54
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Wednesday, May 30. 2007
How to show that you don't care about security
It's an often told story that the free software community cares more about security. That it's much better because everyone can look at the code. While this may sometimes be true and I know many free software projects really care about security issues, often enough it's the exact opposite.
On 26.04., some guy called Marsu released an advisory about the GIMP. Loading files in the sunras-format can lead to a buffer overflow. Now, while it was silently fixed in svn, for a month they didn't put an advisory on their page and they didn't provide an update. Even with the release of new versions (2.2.15, 2.3.17), they somehow »forgot« to mention that it was a security-update.
Now, after looking into the NEWS-file (which is their Changelog), for 2.2.15 there's this little line:
- guard against a possible stack overflow in the Sunras loader (bug #433902)
They didn't mention the word »security«, they didn't give credits to Marsu, they didn't provide a reference to the advisory or the CVE-ID. Now, even worse, for 2.3.17, they forgot to mention that bug at all (it's probably part of the mentioned »lots of bug fixes«).
Now one might say this isn't that critical, because who uses sunras (I also never heared of that format before)? But think about this: I could mail someone a crafted sunras-file, saying it's an old image I found on some backup HD, together with the note that gimp can open it. I think it's not unlikely that someone might open it, especially with some intelligent social engineering. Beside that, EVERY SINGLE security bug should be taken serious.
Now, don't take me wrong. I love the GIMP, it's a great application. I also think that free software is an important precondition for secure software. But it's not the only thing. And as long as many people in the free software community treat security bugs like this, it's no better than those in the proprietary world.
On 26.04., some guy called Marsu released an advisory about the GIMP. Loading files in the sunras-format can lead to a buffer overflow. Now, while it was silently fixed in svn, for a month they didn't put an advisory on their page and they didn't provide an update. Even with the release of new versions (2.2.15, 2.3.17), they somehow »forgot« to mention that it was a security-update.
Now, after looking into the NEWS-file (which is their Changelog), for 2.2.15 there's this little line:
- guard against a possible stack overflow in the Sunras loader (bug #433902)
They didn't mention the word »security«, they didn't give credits to Marsu, they didn't provide a reference to the advisory or the CVE-ID. Now, even worse, for 2.3.17, they forgot to mention that bug at all (it's probably part of the mentioned »lots of bug fixes«).
Now one might say this isn't that critical, because who uses sunras (I also never heared of that format before)? But think about this: I could mail someone a crafted sunras-file, saying it's an old image I found on some backup HD, together with the note that gimp can open it. I think it's not unlikely that someone might open it, especially with some intelligent social engineering. Beside that, EVERY SINGLE security bug should be taken serious.
Now, don't take me wrong. I love the GIMP, it's a great application. I also think that free software is an important precondition for secure software. But it's not the only thing. And as long as many people in the free software community treat security bugs like this, it's no better than those in the proprietary world.
Thursday, May 17. 2007
Web comics

Creative Commons by-nc, from Randall Munroe
Ramon yesterday pointed me to xkcd (also the source of this sudoku-image). If you look at the earlier images, you'll suddenly think »This guy must have done this in school".
For you lucasarts-lovers, I also like Day after the Day of the Tentacle (although rarely updated).
Posted by Hanno Böck
in Art, Computer culture, English, Retro Games
at
16:47
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Friday, May 11. 2007
Short Tip: Change Serendipity URLs
Up until recently, I had URLs of the form /item/number, which is due to the reason that this was the URL-naming-scheme of bblog, an ancient blogging software I used years back. Now serendipity supports URLs with the title (minus problematic charakters), which is much better for search engines, because they often rate words that appear in the url better. Now, changing the URL after years of blogging doesn't seem appropriate (probably hundreds of links, trackbacks, bookmarks), so I needed some migration path. Serendipity doesn't support two url schemes out of the box, so I hacked some bash to do the trick. This will generate (after changing the url) forward rules (add them to .htaccess after the s9y-stuff), which send a »moved permanently«-answer. This has do be done only once, as there won't be links on new articles with the old scheme.
It's a fast hack and it probably doesn't fit in other situations without changes, but it's a nice example how fast you get somewhere with some bash and sed magic:
It's a fast hack and it probably doesn't fit in other situations without changes, but it's a nice example how fast you get somewhere with some bash and sed magic:
for i in `seq 1 31`; do
wget --quiet -O - http://www.hboeck.de/archives/P$i.html|grep serendipity_title | \
sed -e 's:^.*href="\([^"]*\)">.*$:\1:g' | \
sed -e 's:^/\w*/\(\w*\)-.*:RewriteRule ^item/\1 \0 [L,R=301]:g'
done
Thursday, May 3. 2007
09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
is all I have to say today.
is all I have to say today.
Posted by Hanno Böck
in Copyright, Cryptography, English, Movies, Politics, Security
at
03:59
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Wednesday, May 2. 2007
Zeitgeist
I knew that kindergarden, blitzkrieg, gesundheit and umlaut are german foreign words in the english language. Today I noticed the word »zeitgeist« in an english talk.
Wikipedia has some more examples
Wikipedia has some more examples
Posted by Hanno Böck
in English, Life
at
03:08
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Defined tags for this entry: english, etymologie
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