August 17, 2004

If you logged into Yahoo Messenger yesterday and was taken back by an automatic security download - don’t be concerned, it’s no virus.

Yahoo was only patching up a few holes.

Yahoo has posted a security patch for a flaw in its instant messaging software that could make a computer system vulnerable to crashes and attacks while a user surfs the web.

TechWeb reports that the patch, which was posted on the company’s site last week, “plugs a hole in Yahoo’s use of portable network graphics, or PNG, a bitmapped graphics file format endorsed by the internet-standards body World Wide Web Consortium.”

TechWeb adds that Yahoo learned of the problem through a notice issued last week by the US Computer Emergency Readiness Team. The flaw enables PNG graphics to execute malicious code when an image is loaded into the system.

Source: Search Engine Journal

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