CVE-2016-0821

Description

The LIST_POISON feature in include/linux/poison.h in the Linux kernel before 4.3, as used in Android 6.0.1 before 2016-03-01, does not properly consider the relationship to the mmap_min_addr value, which makes it easier for attackers to bypass a poison-pointer protection mechanism by triggering the use of an uninitialized list entry, aka Android internal bug 26186802, a different vulnerability than CVE-2015-3636.

References

https://github.com/torvalds/linux/commit/8a5e5e02fc83aaf67053ab53b359af08c6c49aaf

http://www.ubuntu.com/usn/USN-2971-3

http://www.ubuntu.com/usn/USN-2971-2

http://www.ubuntu.com/usn/USN-2971-1

http://www.ubuntu.com/usn/USN-2970-1

http://www.ubuntu.com/usn/USN-2969-1

http://www.ubuntu.com/usn/USN-2968-2

http://www.ubuntu.com/usn/USN-2968-1

http://www.ubuntu.com/usn/USN-2967-2

http://www.ubuntu.com/usn/USN-2967-1

http://www.securityfocus.com/bid/84260

http://www.openwall.com/lists/oss-security/2015/05/02/6

http://www.debian.org/security/2016/dsa-3607

http://source.android.com/security/bulletin/2016-03-01.html

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8a5e5e02fc83aaf67053ab53b359af08c6c49aaf

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3