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Google fixes Android bugs, including lingering Mediaserver flaw

Fahmida Y. Rashid | March 9, 2016
Google continues its monthly security update cycle for Android, fixing nearly 20 vulnerabilities in the latest bulletins

Partners, including handset makers and phone carriers, received the bulletin on Feb. 1. The Nexus devices will receive over-the-air updates and the patches are expected to be posted to the Android Open Source Project repository. Non-Nexus devices will follow schedules determined by the manufacturers or the carriers. While Samsung has committed to updates for its latest models, many Android phones remain on older versions.

Google's Android Security team is actively monitoring for abuse with Verify Apps and SafetyNet, which both warn users of potentially harmful applications about to be installed.

Introduced in Android 4.2, Verify Apps works by scanning all .apk packages downloaded from Google Play and other sources for potentially harmful applications. "Google's systems use machine learning to see patterns and make connections that humans would not," Elena Kovakina, a senior security analyst at Google, said in Febrary at the Kaspersky Lab Security Analyst Summit.

Verify Apps scan for known attack vectors and scenarios such as phishing, rooting operations, ransomware, backdoors, spyware, harmful sites, SMS fraud, WAP fraud, and call fraud. Because it's enabled by default, most malicious attacks are thwarted, Kovakina said. An example is the recent Lockdroid malware, which could have affected a large percentage of Android devices, but turned out to have not infected any Android users.

Even if users can't update their Android devices to the latest versions, the SafetyNet and Verify Apps features filter out the majority of bad apps which could take advantage of these flaws.


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