CVE-2017-7187 Memory corruption in n/a
Local attackers can trigger a stack-based buffer overflow in the Linux kernel SCSI generic driver via a large command size, causing denial of service or potential code execution.
- 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-2017-7187?
CVE-2017-7187 is a high-severity memory corruption vulnerability in Linux kernel, published on 20 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel through 4.10.4 allows local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a large command size in an SG_NEXT_CMD_LEN ioctl call, leading to out-of-bounds write access in the sg_write function.
Weakness: CWE-119
Which versions are affected by CVE-2017-7187?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2017-7187?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2017-7187 being exploited?
There is no known exploitation of CVE-2017-7187 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2017-7187, GHSA-r45w-6g4r-v8j6, UBUNTU-CVE-2017-7187.