CVE-2016-9031 Integer overflow in SmartOS

High 7.8 Published Updated

An integer overflow in the Hyprlofs file system allows attackers to cause a kernel panic and potentially escalate privileges on SmartOS.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2016-9031?

CVE-2016-9031 is a high-severity vulnerability in Joyent SmartOS, published on 14 Dec 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An exploitable integer overflow exists in the Joyent SmartOS 20161110T013148Z Hyprlofs file system. The vulnerability is present in the Ioctl system call with the command HYPRLOFS_ADD_ENTRIES when dealing with 32-bit file systems. An attacker can craft an input that can cause a kernel panic and potentially be leveraged into a full privilege escalation vulnerability. This vulnerability is distinct from CVE-2016-8733.

Weakness: CWE-190

Which versions are affected by CVE-2016-9031?

It affects 1 product.

Products include Joyent Smartos.

How do I fix CVE-2016-9031?

No fix has been published for CVE-2016-9031 yet. Limit exposure of the affected software until one is available.

Is CVE-2016-9031 being exploited?

There is no known exploitation of CVE-2016-9031 in the wild and no public exploit code.

Sources

Also known as GHSA-9vxv-mj8f-wqwx.

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