CVE-2016-0846

Description

libs/binder/IMemory.cpp in the IMemory Native Interface in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-04-01 does not properly consider the heap size, which allows attackers to gain privileges via a crafted application, as demonstrated by obtaining Signature or SignatureOrSystem access, aka internal bug 26877992.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Ubuntu

Security tracker ↗

Release	Package	Fixed in	Advisory
Ubuntu 16.04 LTS	android	No fix yet	—

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Exploit-DB 1

Google Android - IMemory Native Interface is Insecure for IPC Use EDB-39686 · dos · Apr 11, 2016 · verified

GitHub 2 repositories

secmob/CVE-2016-0846 ★ 36 · Apr 8, 2016

arbitrary memory read/write by IMemroy OOB
b0b0505/CVE-2016-0846-PoC ★ 1 · Apr 19, 2016

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

libs/binder/IMemory.cpp in the IMemory Native Interface in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before…