CVE-2016-0821 Security feature bypass in n/a
Attackers can bypass poison-pointer protection mechanisms in the Linux kernel by exploiting improper handling of uninitialized list entries relative to mmap_min_addr.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-0821?
CVE-2016-0821 is a medium-severity vulnerability in Google Android, published on 12 Mar 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-908
Which versions are affected by CVE-2016-0821?
It affects 2 products.
Products include Google Android, Linux kernel.
How do I fix CVE-2016-0821?
Apply the vendor's patch.
Is CVE-2016-0821 being exploited?
There is no known exploitation of CVE-2016-0821 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as DEBIAN-CVE-2016-0821, GHSA-9548-jjm6-2wmw, UBUNTU-CVE-2016-0821.