If you are using Mozilla's Firefox then its time to update your Firefox immediately. As Mozilla says, a critical bug ( CVE-2019-11707: Type confusion in Array.pop ) has been reported by Samuel GroB of Google project zero. And this bug can be used to exploit your system.
A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. This can allow for an exploitable crash. We are aware of targeted attacks in the wild abusing this flaw
Hackers can use this bug to inject code when you visit a malicious site, Mozilla said in a statement.
So, if you are using Firefox, kindly update to latest version ( Firefox 67.0.3 and Firefox ESR 60.7.1) immediately.
Here are the download links, if you need..
- Download Firefox 67.0.3 for Linux 64-bit
- Download Firefox 67.0.3 for Linux 32-bit
- Download Firefox 67.0.3 for Windows 64-bit
- Download Firefox 67.0.3 for Windows 32-bit
- Download Firefox 67.0.3 for macOS
You can read the information about this bug on official site.