Adobe Fixes Zero-Day Flaw in Flash Player

Adobe is unleashing updates for Flash Player, Acrobat, and Reader to fix a zero-day bug in Flash being exploited in attacks

Adobe is releasing updates today to address a critical zero-day flaw in Flash Player--and the authplay.dll element used in Adobe Reader and Adobe Acrobat--that was announced last week. Time to get patching.

The vulnerability in Flash Player can be exploited to allow the attacker to take complete control of the target PC, and be able to install other malicious code or access sensitive information. Even a "failed" exploit could crash the system. Adobe has reported limited attacks in the wild targeting this flaw with a Flash (SWF) file embedded in a Microsoft Excel (XLS) file attachment in an email.

There are no known attacks directed at Adobe Reader or Adobe Acrobat yet. But, the fact that both products can render Flash content with the authplay.dll component makes them vulnerable, and there is some concern that attacks could use malicious PDF files to exploit the vulnerability.

The updates today apply to Flash Player--including the Chrome Web browser with integrated Flash support, Acrobat, and most versions of Reader. Adobe Reader X for Windows will have to wait for its update.

Adobe Reader X for Windows includes a security sandbox that segregates scripts and other such executable code from being able to interact with or impact the underlying program, or the Windows operating system. The sandbox protection is not impervious, but the extra layer of security means that it is very unlikely that an attack attempting to exploit authplay.dll would be successful.

The Adobe security bulletin for Acrobat and Reader explains, "Because Adobe Reader X Protected Mode would prevent an exploit of this kind from executing, we are planning to address this issue in Adobe Reader X for Windows with the next quarterly security update for Adobe Reader, currently scheduled for June 14, 2011."

The updates are available now for Adobe Reader and Adobe Acrobat. The update for versions of Adobe Flash Player--and the Chrome Web browser with integrated Flash support--will be available sometime this afternoon according to an Adobe spokesperson.

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Tags securitymalwareflashphishingspamvirusesantispamAdobe Systems

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Tony Bradley

PC World (US online)
Show Comments

Brand Post

Bitdefender 2018

Secure and Save before time runs out with Bitdefender Exclusive Clearance Offer! Get Bitdefender Total Security 2018 Now!

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Laura Johnston

MSI GS65 Stealth Thin

If you can afford the price tag, it is well worth the money. It out performs any other laptop I have tried for gaming, and the transportable design and incredible display also make it ideal for work.

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?