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ResStringPool: Fix security vulnerability
authory <rtmitchell@google.com>
Fri, 6 Apr 2018 00:57:27 +0000 (17:57 -0700)
committerandroid-build-team Robot <android-build-team-robot@google.com>
Fri, 25 May 2018 18:40:07 +0000 (18:40 +0000)
commit7fa9b75fc2440ffe921d65aef6df5478fb749633
tree695361ed6494478e14bcaf79458393fe8bb1f029
parente6655cb8a78b757e9329b8200a90746ffac3a5a9
ResStringPool: Fix security vulnerability

Adds detection of attacker-modified size and data fields passed to
ResStringPool::setTo(). These attacks are modified apks that AAPT would
not normally generate. In the rare case this occurs, the installation
cannot be allowed to continue.

Bug: 71361168
Bug: 71360999
Test: run cts -m CtsAppSecurityHostTestCases \
          -t android.appsecurity.cts.CorruptApkTests

Change-Id: If7eb93a9e723b16c8a0556fc4e20006aa0391d57
Merged-In: If7eb93a9e723b16c8a0556fc4e20006aa0391d57
(cherry picked from commit 7e54c3f261d81316b75cb734075319108d8bc1d1)
libs/androidfw/ResourceTypes.cpp