CVE-2015-3860 Information

Description

packages/Keyguard/res/layout/keyguard_password_view.xml in Lockscreen in Android 5.x before 5.1.1 LMY48M does not restrict the number of characters in the passwordEntry input field which allows physically proximate attackers to bypass intended access restrictions via a long password that triggers a SystemUI crash aka internal bug 22214934.

Reference

http://sites.utexas.edu/iso/2015/09/15/android-5-lockscreen-bypass/ https://android.googlesource.com/platform/frameworks/base/+/8fba7e6931245a17215e0e740e78b45f6b66d590 https://code.google.com/p/android/issues/detail?id=178139 https://groups.google.com/forum/message/raw?msg=android-security-updates/1M7qbSvACjo/Y7jewiW1AwAJ