Update Flash Player now: new flaw under attack

An emergency patch for Flash Player is available today that fixes a flaw in the version that Adobe released three weeks ago.

If you’re running the Flash Player plugin on a browser on Linux, Windows, Mac or Chrome OS, it’s time to update again. The company on Monday released an unscheduled update to fix a bug that it says is being exploited in the wild.

Flash Player version 20.0.0.267 for Windows and Mac systems — as well as Flash installed with Google’s Chrome and Microsoft’s Edge browsers — addresses 19 bugs in the Flash Player update that Adobe released earlier this month.

The bug under attack has the identifier CVE-2015-8651 and was reported by Kai Wang and Hunter Gao of Huawei's IT Infrastructure & Security Department.

Adobe said the flaw is being “used in limited, targeted attacks” and described it as “an integer overflow vulnerability that could lead to code execution”. In other words, simply visiting a malicious website that exploits the bug could leave a machine under the control of a remote attacker.

The remaining 18 bugs are just as serious and include 13 use-after-free vulnerabilities, four memory corruption vulnerabilities, and one type confusion vulnerability.

“These updates address critical vulnerabilities that could potentially allow an attacker to take control of the affected system,” Adobe said.

As usual, users running Flash Player within Chrome will receive the update from Google, while users of Internet Explorer 11 and Edge on Windows 10 will receive the fixes in an update from Microsoft.

Others credited in this update included Google’s Project Zero, Qihoo 360 and Tencent, whose respective security teams collectively reported over half of the bugs in the previous Flash update.

Read more: What is a Hack?

Adobe’s December 9 update for Flash Player was its last scheduled for 2015 and delivered fixes for 79 critical flaws, making it the largest update for the year. Today’s update illustrates that Adobe will break from its patching schedule in the event it discovers an un-patched flaw is being attacked in the wild.

Join the CSO newsletter!

Error: Please check your email address.

Tags targeted attackcritical vulnerabilitieshackCVE-2015-8651remote attackersAdobe Flash playerpatch

More about GoogleHuaweiLinuxMicrosoftWang

Show Comments

Featured Whitepapers

Editor's Recommendations

Solution Centres

Stories by Liam Tung

Latest Videos

  • 150x50

    CSO Webinar: The Human Factor - Your people are your biggest security weakness

    ​Speakers: David Lacey, Researcher and former CISO Royal Mail David Turner - Global Risk Management Expert Mark Guntrip - Group Manager, Email Protection, Proofpoint

    Play Video

  • 150x50

    CSO Webinar: Current ransomware defences are failing – but machine learning can drive a more proactive solution

    Speakers • Ty Miller, Director, Threat Intelligence • Mark Gregory, Leader, Network Engineering Research Group, RMIT • Jeff Lanza, Retired FBI Agent (USA) • Andy Solterbeck, VP Asia Pacific, Cylance • David Braue, CSO MC/Moderator What to expect: ​Hear from industry experts on the local and global ransomware threat landscape. Explore a new approach to dealing with ransomware using machine-learning techniques and by thinking about the problem in a fundamentally different way. Apply techniques for gathering insight into ransomware behaviour and find out what elements must go into a truly effective ransomware defence. Get a first-hand look at how ransomware actually works in practice, and how machine-learning techniques can pick up on its activities long before your employees do.

    Play Video

  • 150x50

    CSO Webinar: Get real about metadata to avoid a false sense of security

    Speakers: • Anthony Caruana – CSO MC and moderator • Ian Farquhar, Worldwide Virtual Security Team Lead, Gigamon • John Lindsay, Former CTO, iiNet • Skeeve Stevens, Futurist, Future Sumo • David Vaile - Vice chair of APF, Co-Convenor of the Cyberspace Law And Policy Community, UNSW Law Faculty This webinar covers: - A 101 on metadata - what it is and how to use it - Insight into a typical attack, what happens and what we would find when looking into the metadata - How to collect metadata, use this to detect attacks and get greater insight into how you can use this to protect your organisation - Learn how much raw data and metadata to retain and how long for - Get a reality check on how you're using your metadata and if this is enough to secure your organisation

    Play Video

  • 150x50

    CSO Webinar: How banking trojans work and how you can stop them

    CSO Webinar: How banking trojans work and how you can stop them Featuring: • John Baird, Director of Global Technology Production, Deutsche Bank • Samantha Macleod, GM Cyber Security, ME Bank • Sherrod DeGrippo, Director of Emerging Threats, Proofpoint (USA)

    Play Video

  • 150x50

    IDG Live Webinar:The right collaboration strategy will help your business take flight

    Speakers - Mike Harris, Engineering Services Manager, Jetstar - Christopher Johnson, IT Director APAC, 20th Century Fox - Brent Maxwell, Director of Information Systems, THE ICONIC - IDG MC/Moderator Anthony Caruana

    Play Video

More videos

Blog Posts

Market Place