CVE-2016-9034 Memory corruption in SmartOS
A buffer overflow in the Hyprlofs file system allows local attackers to escalate privileges via a crafted ioctl call.
- 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-2016-9034?
CVE-2016-9034 is a high-severity memory corruption 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 buffer 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 buffer overflow in the nm variable leading to an out of bounds memory access and could result in potential privilege escalation. This vulnerability is distinct from CVE-2016-9032.
Weakness: CWE-120
Which versions are affected by CVE-2016-9034?
It affects 1 product.
Products include Joyent Smartos.
How do I fix CVE-2016-9034?
No fix has been published for CVE-2016-9034 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2016-9034 being exploited?
There is no known exploitation of CVE-2016-9034 in the wild and no public exploit code.
Other vulnerabilities in Joyent SmartOS
Sources
Also known as GHSA-w6pc-m3rh-gpq7.