CVE-2017-15274 Null dereference in n/a
Local attackers can cause a denial of service via a NULL pointer dereference in the Linux kernel key management subsystem using crafted system calls.
- 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-2017-15274?
CVE-2017-15274 is a medium-severity vulnerability in Linux kernel, published on 12 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
security/keys/keyctl.c in the Linux kernel before 4.11.5 does not consider the case of a NULL payload in conjunction with a nonzero length value, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted add_key or keyctl system call, a different vulnerability than CVE-2017-12192.
Weakness: CWE-476
Which versions are affected by CVE-2017-15274?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2017-15274?
Apply the vendor's patch.
Is CVE-2017-15274 being exploited?
There is no known exploitation of CVE-2017-15274 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2017-15274, GHSA-pmx4-mgj6-5fc6, UBUNTU-CVE-2017-15274.