Android Security Bulletin for April is Now Available with OTA and Factory Images

Android Security Bulletin for April is Now Available with OTA and Factory Images

A new month means it’s time for a new security patch. Google has just released the April 2018 security patch for Nexus and Pixel devices. Factory images and OTA files are already available for download. The devices included are the Google Pixel 2, Pixel 2 XL, Google Pixel, Pixel XL, Nexus 6P, Nexus 5X, and Pixel C.

The April patch includes 62 issues that have been resolved. As usual, the vulnerabilities range from high to critical, but Google says there are no reports of users being affected. Like last month, the most severe vulnerability has to do with the media framework and the possibility of a remote attacker using a “specially crafted file” to execute arbitrary code. Here’s the full list of functional updates for the Pixel/Nexus devices:

ImprovementDevices
Enable Assisted Dialing supportPixel 2, Pixel 2 XL
Improve anomaly detection metricsAll
Improve diskstats loggingAll
Improve handover from VoLTE to VoWi-Fi during Emergency calls on certain carriersPixel, Pixel XL, Pixel 2, Pixel 2 XL
Improve microvideo performance in Google CameraPixel, Pixel XL, Pixel 2, Pixel 2 XL
Reduce delays upon opening specific appsPixel 2, Pixel 2 XL
Improve decoding of certain video streamsPixel, Pixel XL
Improve fingerprint and keyboard latency in certain situationsPixel 2, Pixel 2 XL
Adjust notifications when entering or exiting Wi-Fi coverage during a video callPixel 2, Pixel 2 XL
Enable IMS911 on certain networksPixel 2, Pixel 2 XL, Pixel, Pixel XL
Detect Wi-Fi Passport statistics for developersAll
Improve lock screen performanceAll
Improve start time loggingAll
Improve magnetic sensor performancePixel 2, Pixel 2 XL
Reduce battery drain after modem issuesPixel 2, Pixel 2 XL
Improve modem stability on Pixel and Pixel 2 phonesPixel, Pixel XL, Pixel 2, Pixel 2 XL
Adjust Call Forwarding UINexus 5X, Pixel, Pixel XL, Pixel 2, Pixel 2 XL
Improve multi-calling performance over Wi-FiPixel, Pixel XL
Improve data connectivity for T-Mobile users in parts of AustraliaPixel, Pixel XL
Update certificationPixel, Pixel XL
Improve Wi-Fi stability on Pixel 2 phonesPixel 2, Pixel 2 XL
Improve handover to Wi-Fi Calling in low-coverage areasPixel 2, Pixel 2 XL
Improve conference call performance over WifiPixel 2, Pixel 2 XL
Improve VoLTE performance for some carriersNexus 5X, Pixel, Pixel XL, Pixel 2, Pixel 2 XL
Adjust APN updating behaviorAll
Improve settings app iconsAll
Upgrade certificates to ensure continued serviceNexus 5X, Pixel, Pixel XL, Pixel 2, Pixel 2 XL
Add methods to PeerHandle API for developersAll
Update Verizon Service APK for Pixel phonesPixel, Pixel XL, Pixel 2, Pixel 2 XL
Improve Wi-Fi and RPM loggingPixel 2, Pixel 2 XL
Improve connectivity and performance on certain carrier networksPixel, Pixel XL, Pixel 2, Pixel 2 XL
Improve notification listening appsAll
Address call forwarding issueAll
Improve internet connectivity on Pixel 2 on certain WiFi networksPixel 2
Adjust APN settingsNexus 5X, Pixel, Pixel XL, Pixel 2, Pixel 2 XL
Improve MMS messaging performance on certain carriersNexus 5X, Pixel, Pixel XL, Pixel 2, Pixel 2 XL
Adjust battery learned capacity increment and decrement limitsPixel 2, Pixel 2 XL
Change voice domain to CS for certain carriersPixel XL
Adjust timeouts for Phone AppAll
Improve stability for Pixel 2 devices in certain parts of CanadaPixel 2, Pixel 2 XL
Improve instant Apps performanceAll
Improve indicators for emergency call connectivityPixel 2, Pixel 2 XL
Optimize search logic to improve battery performancePixel 2, Pixel 2 XL
Improve battery logging for Pixel 2 and Pixel 2 XLPixel 2, Pixel 2 XL
Improve GPS Time performance on Pixel 2 XLPixel 2 XL
Improve audio speaker performance during phone callsAll
Adjust advanced calling settings for VerizonNexus 5X, Pixel, Pixel XL, Pixel 2, Pixel 2 XL
Change to prioritize certain bandsNexus 5X, Pixel, Pixel XL, Pixel 2, Pixel 2 XL
Improve in-call performance for some carriersPixel, Pixel XL, Pixel 2, Pixel 2 XL
Improve network performance on Simyo carrierNexus 5X
Improve connectivity metricsAll
Improve experience switching between LTE and WifiPixel 2 XL
Improve data performance for devices with certain SIM cardsAll
Improve autofill loggingAll
Improve internal troubleshooting toolsAll
Improve network loggingAll

The Pixel/Nexus Security Bulletin is live right now. The general Android bulletin is also available below. You can find the OTA files and factory images for your device from the links below.

Source: Android Security Bulletin Source: Pixel/Nexus Security Bulletin Source: OTA Images Source: Factory Images

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Joe Fedewa
Joe Fedewa

Former Managing Editor at XDA-Developers. Lover of all things with displays.