First bug in IE7 discovered within 15 minutes

15 minutes after IE 7 beta 2 version went out of Microsoft, was discovered first bug in it. Its nice, because Microsoft announced that 7 version should be much more safe than previous. Much better is fact, that this bug is absolute new, wasnt in any previous version of IE. What is it? When IE meet src=// and very long char chain within, it crash.. And more than crash, when used proper code, attacker may take controll of computer. Really nice little thingie, dont you think?