Yahoo Patches IM Vulnerability

Apr 06, 2007
Yahoo logo

A buffer overflow problem is patched by the company.

Yahoo has patched a buffer overflow vulnerability in its instant-messaging tool that would have enabled attackers to potentially execute code on a compromised machine.

The flaw exists in an ActiveX control that is part of the Yahoo Messenger audio conference control. If exploited, a buffer overflow could cause a user to be involuntarily logged out of a chat or instant messaging session, the crash of an application such as Internet Explorer or the execution of code.

According to the company, an attacker would have to trick a user into viewing malicious HTML code in order for the attack to be successful.

Andrew Storms, director of security operations for San Francisco-based nCircle, said addressing the vulnerability could pose a problem in large corporate environments where Yahoo Messenger is widely used.

"Yahoo IM is heavily used in the corporate environment even if security policy doesn't officially permit it," he said. " - This vulnerability - leaves administrators with the choices to upgrade or set the kill-bit on the affected ActiveX control. Unfortunately, many corporations are unable to centrally manage upgrades - to - Windows Messenger, making this fix extremely time-intensive for IT teams. Many companies will be performing ad-hoc mitigation to get this cleaned up."

Yahoo advises anyone who has installed Yahoo Messenger before March 13 to install the update.

Copyright 2007 by Ziff Davis Media, Distributed by United Press International

Explore further: Instagram launches time-lapse video app for iPhone

add to favorites email to friend print save as pdf

Related Stories

Indian government wakes up to risk of Hotmail, Gmail

Dec 08, 2013

Worried by US spying revelations, India has begun drawing up a new email policy to help secure government communications, but the man responsible for drafting the rules still regularly uses Hotmail.

Security holes in smartphone apps (w/ Videos)

Apr 17, 2013

(Phys.org) —Popular texting, messaging and microblog apps developed for the Android smartphone have security flaws that could expose private information or allow forged fraudulent messages to be posted, ...

Recommended for you

SHORE facial analysis spots emotions on Google Glass

14 hours ago

One of the key concerns about facial recognition software has been over privacy. The very idea of having tracking mechanisms as part of an Internet-connected wearable would be likely to upset many privacy ...

Does your computer know how you're feeling?

Aug 22, 2014

Researchers in Bangladesh have designed a computer program that can accurately recognize users' emotional states as much as 87% of the time, depending on the emotion.

User comments : 0