CVE-2015-7799 Null dereference in n/a
Local attackers can crash the Linux kernel via a crafted ioctl call due to a NULL pointer dereference in the SLIP header compression module.
- 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-2015-7799?
CVE-2015-7799 is a medium-severity vulnerability in Linux kernel, published on 19 Oct 2015. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The slhc_init function in drivers/net/slip/slhc.c in the Linux kernel through 4.2.3 does not ensure that certain slot numbers are valid, which allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted PPPIOCSMAXCID ioctl call.
Which versions are affected by CVE-2015-7799?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2015-7799?
Apply the vendor's patch.
Is CVE-2015-7799 being exploited?
There is no known exploitation of CVE-2015-7799 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2015-7799, GHSA-4r89-qcc9-4pm9, UBUNTU-CVE-2015-7799.