CVE-2016-3955 Memory corruption in n/a
Remote attackers can cause denial of service or potential code execution via crafted USB/IP packets due to an out-of-bounds write in the Linux kernel.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-3955?
CVE-2016-3955 is a critical memory corruption vulnerability in Canonical Ubuntu Linux, published on 3 Jul 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The usbip_recv_xbuff function in drivers/usb/usbip/usbip_common.c in the Linux kernel before 4.5.3 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact via a crafted length value in a USB/IP packet.
Weakness: CWE-119
Which versions are affected by CVE-2016-3955?
It affects 3 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel.
How do I fix CVE-2016-3955?
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-2016-3955 being exploited?
There is no known exploitation of CVE-2016-3955 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2016-3955, GHSA-4chg-535w-wpv8, UBUNTU-CVE-2016-3955.