CVE-2015-4176 Information disclosure in n/a
Local attackers with user-namespace root access can read arbitrary files due to improper mount connectivity handling in the Linux kernel.
- 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-2015-4176?
CVE-2015-4176 is a medium-severity vulnerability in Linux kernel, published on 2 May 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
fs/namespace.c in the Linux kernel before 4.0.2 does not properly support mount connectivity, which allows local users to read arbitrary files by leveraging user-namespace root access for deletion of a file or directory.
Weakness: CWE-200
Which versions are affected by CVE-2015-4176?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2015-4176?
Upgrade to a fixed version.
Is CVE-2015-4176 being exploited?
There is no known exploitation of CVE-2015-4176 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as GHSA-7254-j3fq-v7pj.