| https://android-developers.googleblog.com/2020/02/Android-11... says: “Native image decoder - New NDK APIs let apps decode and encode images (such as JPEG, PNG, WebP) from native code for graphics or post processing, while retaining a smaller APK size since you don’t need to bundle an external library. The native decoder also takes advantage of Android’s process for ongoing platform security updates. See the NDK sample code for examples.” However, poking about in the Android mainline module docs I can find no evidence that the image decoder libraries are included in the system updates that get pushed through Google Play. I’ve unpacked the obvious modules & found the video codecs, but no sign whatsoever of the image decoder libraries, It would be helpful to be able to tell whether a given phone has received such an update, especially in the case of 0-click exploits like this one! Are all Android 11+ phones guaranteed to receive it? (it would seem so, if this is a core security component) Is there anyway to tell whether you’ve received it? This aspect of Android updates seems to be entirely opaque to the end user - updates get pushed through Google Play services & that’s it. After some investigation, I found https://support.google.com/product-documentation/answer/1141... which gives some details of Android system updates pushed through Google Play. This changelog does not list CVEs or specific bugfixes, so it’s impossible to tell which bugs have been closed via this route, but it is at least slightly better than nothing at all. It is possible to map those updates to actual CVEs mentioned in the AOSP sources via a circuitous route involving adb & running a bunch of commands on your phone, according to this blog post: https://www.esper.io/blog/building-a-google-play-system-upda... Looking at the current AOSP wepb sources, no module tags have been attached to the current release, so it doesn’t look like it’s been pushed out yet, if it’s possible for Google to do so at all outside the monthly security updates for in-support phones. |