Google and Mozilla both updated their Web browsers this week. Mozilla fixed 11 vulnerabilities in its update to Firefox, while Google fixed two in its Chrome browser.Mozilla and Google both patched critical vulnerabilities in their browsers this week.
Of the two, Mozilla plugged the
most security holes. The company fixed 11 vulnerabilities in a June 11
update to Firefox. More than half of the bugs were labeled as
"critical." Three of the critical bugs were in the browser’s rendering
JavaScript engines and in certain circumstances result in memory
corruption that could result in arbitrary code execution, according to
the Mozilla advisory.
The other critical patches cover a JavaScript chrome privilege
escalation issue, an arbitrary code execution using event listeners
attached to an element whose owner document is null and a race
condition while accessing the private data of a NPObject JS wrapper
class object.
Ranked as "high" is a
SSLtampering vulnerability that an active network attacker could use to
intercept a CONNECT request and reply with a non-200 response
containing malicious code that would be executed within the context of
the victim's requested
SSL-protected domain.
On June 9, Google plugged two
security holes with the release of Chrome version 2.0172.31. The fixes
address two problems in Webkit. The first is a memory corruption issue
in Webkit’s handling of recursion in certain
DOMevent
handlers. If a user visits a malicious Website, hackers could
potentially execute code in Google’s Chrome sandbox. There was also an
issue in WebKit’s handling of drag events that could lead to the
disclosure of data when content is dragged over a malicious Web
page.
In addition to the fixes, Mozilla also recently released a preview of Firefox 3.5.