CVE-2016-0821

MEDIUM

Linux Kernel < 4.3 - Use-After-Free via LIST_POISON and mmap_min_addr Bypass

Title source: llm
STIX 2.1

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 (15)

Core 15
Core References
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2971-2
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2967-1
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2970-1
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://github.com/torvalds/linux/commit/8a5e5e02fc83aaf67053ab53b359af08c6c49aaf
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2015/05/02/6
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2969-1
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2967-2
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2968-1
Third Party Advisory x_refsource_confirm
http://source.android.com/security/bulletin/2016-03-01.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2971-3
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2016/dsa-3607
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2971-1
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2968-2
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/84260

Scores

CVSS v3 5.5
EPSS 0.0038
EPSS Percentile 30.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-908
Status published
Products (2)
google/android 6.0.1
linux/linux_kernel < 4.3
Published Mar 12, 2016
Tracked Since Feb 18, 2026