CVE-2017-8064 Memory corruption in n/a

High 7.8 Published Updated

Local attackers can cause system crashes or memory corruption in the Linux kernel DVB-USB driver by exploiting a DMA scatterlist issue with VMAP_STACK enabled.

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-2017-8064?

CVE-2017-8064 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 23 Apr 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

drivers/media/usb/dvb-usb-v2/dvb_usb_core.c in the Linux kernel 4.9.x and 4.10.x before 4.10.12 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash or memory corruption) or possibly have unspecified other impact by leveraging use of more than one virtual page for a DMA scatterlist.

Weakness: CWE-119

Which versions are affected by CVE-2017-8064?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2017-8064?

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-2017-8064 being exploited?

There is no known exploitation of CVE-2017-8064 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-8064, GHSA-rp9c-7g4x-v5p2.

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