CVE-2016-7917 Information disclosure in n/a
Local attackers with CAP_NET_ADMIN can read kernel memory or cause denial of service via improper length checks in netfilter batch processing.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2016-7917?
CVE-2016-7917 is a medium-severity vulnerability in Linux kernel, published on 16 Nov 2016. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The nfnetlink_rcv_batch function in net/netfilter/nfnetlink.c in the Linux kernel before 4.5 does not check whether a batch message's length field is large enough, which allows local users to obtain sensitive information from kernel memory or cause a denial of service (infinite loop or out-of-bounds read) by leveraging the CAP_NET_ADMIN capability.
Which versions are affected by CVE-2016-7917?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2016-7917?
Apply the vendor's patch.
Is CVE-2016-7917 being exploited?
There is no known exploitation of CVE-2016-7917 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2016-7917, GHSA-8jgg-fm67-jxqm, UBUNTU-CVE-2016-7917.