The Google engineers discovered that an image at PNG format received by email or downloaded from the Internet could expose Android smartphones to attack.
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They published an alert in the Android monthly security bulletin, declaring that hackers could take control of a device using a PNG file specially designed to execute code in the context of a privileged procedure.
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This critical flaw affects you directly if you have a smartphone running Android Nougat 7.0 or newer. Although no victim of this type of attack has yet been declared (which suggests that the flaw has not yet been exploited), Google advises users of Android devices toapply the security patch as soon as it is published.