The engineNextBytes function in classlib/modules/security/src/main/java/common/org/apache/harmony/security/provider/crypto/SHA1PRNG_SecureRandomImpl.java in the SecureRandom implementation in Apache Harmony through 6.0M3, as used in the Java Cryptography Architecture (JCA) in Android before 4.4 and other products, when no seed is provided by the user, uses an incorrect offset value, which makes it easier for attackers to defeat cryptographic protection mechanisms by leveraging the resulting PRNG predictability, as exploited in the wild against Bitcoin wallet applications in August 2013.

Android 3.0 through 4.1.x on Disney Mobile, eAccess, KDDI, NTT DOCOMO, SoftBank, and other devices does not properly implement the WebView class, which allows remote attackers to execute arbitrary methods of Java objects or cause a denial of service (reboot) via a crafted web page, as demonstrated by use of the WebView.addJavascriptInterface method, a related issue to CVE-2012-6636.

java/android/webkit/BrowserFrame.java in Android before 4.4 uses the addJavascriptInterface API in conjunction with creating an object of the SearchBoxImpl class, which allows attackers to execute arbitrary Java code by leveraging access to the searchBoxJavaBridge_ interface at certain Android API levels.

Android 4.0 through 4.3 allows attackers to bypass intended access restrictions and remove device locks via a crafted application that invokes the updateUnlockMethodAndFinish method in the com.android.settings.ChooseLockGeneric class with the PASSWORD_QUALITY_UNSPECIFIED option.

Android 1.6 Donut through 4.2 Jelly Bean does not properly check cryptographic signatures for applications, which allows attackers to execute arbitrary code via an application package file (APK) that is modified in a way that does not violate the cryptographic signature, probably involving multiple entries in a Zip file with the same name in which one entry is validated but the other entry is installed, aka Android security bug 8219321 and the "Master Key" vulnerability.

The LG Hidden Menu component for Android on the LG Optimus G E973 allows physically proximate attackers to execute arbitrary commands by entering USB Debugging mode, using Android Debug Bridge (adb) to establish a USB connection, dialing 3845#*973#, modifying the WLAN Test Wi-Fi Ping Test/User Command tcpdump command string, and pressing the CANCEL button.

The TrustZone kernel, when used in conjunction with a certain Motorola build of Android 4.1.2, on Motorola Razr HD, Razr M, and Atrix HD devices with the Qualcomm MSM8960 chipset does not verify the association between a certain physical-address argument and a memory region, which allows local users to unlock the bootloader by using kernel mode to perform crafted 0x9 and 0x2 SMC operations, a different vulnerability than CVE-2013-2596.

Integer overflow in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel before 3.8.9, as used in a certain Motorola build of Android 4.1.2 and other products, allows local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted /dev/graphics/fb0 mmap2 system calls, as demonstrated by the Motochopper pwn program.