April 16th, 2008
Apple plugs Pwn2Own winning vulnerability
Apple plugged the winning vulnerability in the Pwn2own contest on Wednesday in a Safari update.
In an update for Safari (3.1.1), Apple fixed the following vulnerabilities:
CVE-2008-1026, also known as the flaw that won hacker Charlie Miller $10,000.in the Pwn2Own contest at CanSecWest. This patch covers a vulnerability that allowed a code execution attack via a maliciously crafted Web page. Here’s Apple’s description:
A heap buffer overflow exists in WebKit’s handling of JavaScript regular expressions. The issue may be triggered via JavaScript when processing regular expressions with large, nested repetition counts. This may lead to an unexpected application termination or arbitrary code execution. This update addresses the issue by performing additional validation of JavaScript regular expressions.
Affected OSes: Mac OS X v10.4.11, Mac OS X Server v10.4.11, Mac OS X v10.5.2, Mac OS X Server v10.5.2, Windows XP or Vista
Among other patches:
CVE-2008-1025: Apple patched a cross-scripting vulnerability. Apple says: “An issue exists in WebKi’s handling of URLs containing a colon character in the host name. Opening a maliciously crafted URL may lead to a cross-site scripting attack. This update addresses the issue through improved handling of URLs.”
Affected OSes: Mac OS X v10.4.11, Mac OS X Server v10.4.11, Mac OS X v10.5.2, Mac OS X Server v10.5.2, Windows XP or Vista
CVE-2008-1024: For Safari on XP and Vista only. Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution. A memory corruption issue exists in Safari’s file downloading.
CVE-2007-2398: Another one for Safari on XP and Vista. A maliciously crafted Web site can control the contents of the address bar. This issue was addressed in Safari Beta 3.0.2, but reintroduced in Safari 3.1.
Also see:
- Apple bolsters QuickTime defenses… or do they?
- Apple patches 11 QuickTime flaws
- Pwn2Own: What OS really won?
Larry Dignan is Editor in Chief of ZDNet and Editorial Director of ZDNet sister site TechRepublic. See his full profile and disclosure of his industry affiliations.
