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The Hacker News - Cybersecurity News and Analysis: Use-After-Free Vulnerabilities

New Chrome 0-day Bug Under Active Attacks – Update Your Browser Now!

New Chrome 0-day Bug Under Active Attacks – Update Your Browser Now!

November 01, 2019Swati Khandelwal
Attention readers, if you are using Chrome on your Windows, Mac, and Linux computers, you need to update your web browsing software immediately to the latest version Google released earlier today. With the release of Chrome 78.0.3904.87, Google is warning billions of users to install an urgent software update immediately to patch two high severity vulnerabilities, one of which attackers are actively exploiting in the wild to hijack computers. Without revealing technical details of the vulnerability, the Chrome security team only says that both issues are use-after-free vulnerabilities, one affecting Chrome's audio component ( CVE-2019-13720 ) while the other resides in the PDFium ( CVE-2019-13721 ) library. The use-after-free vulnerability is a class of memory corruption issues that allows corruption or modification of data in the memory, enabling an unprivileged user to escalate privileges on an affected system or software. Thus, both flaws could enable remote attackers
Update Google Chrome Browser to Patch New Critical Security Flaws

Update Google Chrome Browser to Patch New Critical Security Flaws

September 19, 2019Wang Wei
Google has released an urgent software update for its Chrome web browser and is urging Windows, Mac, and Linux users to upgrade the application to the latest available version immediately. Started rolling out to users worldwide this Wednesday, the Chrome 77.0.3865.90 version contains security patches for 1 critical and 3 high-risk security vulnerabilities, the most severe of which could allow remote hackers to take control of an affected system. Google has decided to keep details of all four vulnerabilities secret for a few more days in order to prevent hackers from exploiting them and give users enough time to install the Chrome update. For now, Chrome security team has only revealed that all four vulnerabilities are use-after-free issues in different components of the web browser, as mentioned below, the critical of which could lead to remote code execution attacks. The use-after-free vulnerability is a class of memory corruption issue that allows corruption or modificat
Zerodium Offers $100,000 for Flash Zero-Day Exploit that Bypasses Mitigations

Zerodium Offers $100,000 for Flash Zero-Day Exploit that Bypasses Mitigations

January 05, 2016Swati Khandelwal
A well-known company popular for buying and selling zero-day vulnerabilities is now offering up to $100,000 for providing a working zero-day exploit for bypassing the Flash Player's Heap Isolation mitigation . Few months back, Adobe deployed Heap Isolation in Flash version 18.0.0209 with an aim at making the Use-After-Free (UAF) vulnerabilities more difficult for cybercriminals to exploit. Zerodium is a startup by the infamous French-based company Vupen that Buys and Sells zero-day exploits and vulnerabilities. Zerodium, which describes itself as " the premium zero-day acquisition platform ," recently paid $1 Million bounty to a hacker for submitting a remote browser-based iOS 9.1/9.2b Jailbreak (untethered) Exploit. What is "Isolated Heap" Mitigation Technique? The use-after-free vulnerability is a type of memory corruption flaw that can be exploited by Hackers to execute arbitrary code or even allows full remote code execution capab
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