The update to Safari 9.0.2 brings important security patches

Recently Apple has updated your Safari web browser to version 9.0.2, being available for both OS X Mavericks 10.9.5, OS X Yosemite 10.10.5 and OS X El Capitan 10.11 onwards. If your computer is in any of these versions of the operating system you should update without hesitation and immediately to the latest version of Safari as it incorporates very important security improvements and with it closing "doors" to potential attackers.

Sometimes certain software updates may seem trivial, but the truth is that are important to help protect us against known vulnerabilities. Hackers can exploit such weaknesses in software and implant malicious software to infect Mac computers in an attempt to steal personal data or simply reveal private information. These updates only take a few minutes to install and, as in this case with the Safari 9.0.2 update, they usually include critical security patches.

Here is a list of the patched vulnerabilities in Safari 9.0.2 according to Apple:

CVE-2015-7048, CVE-2015-7095, CVE-2015-7096, CVE-2015-7097, CVE-2015-7098, CVE-2015-7099, CVE-2015-7100, CVE-2015-7101, CVE- 2015-7102, CVE-2015-7103, CVE-2015-7104:

In general, these CVEs (Common Vulnerabilities and Spouses) prevent that if we visit a malicious website may cause arbitrary code to be executed. They also fix various memory corruption issues that existed in WebKit. These issues were addressed by improving memory management.

CVE-2015-7050: Visiting a malicious website can reveal a user's browsing history. A validation problem existed in the content blocking. This problem is solved by improving the content extension analysis.

If, as I mentioned before, if you are in a compatible version of the system you can install the latest Safari browser by selecting the menu > App Store…, or directly by running the Mac App Store and going to the updates tab.