FreeBSD : NVIDIA UNIX driver -- access to arbitrary system memory (b91234e7-9a8b-11e1-b666-001636d274f3)

This script is Copyright (C) 2012-2016 Tenable Network Security, Inc.

Synopsis :

The remote FreeBSD host is missing one or more security-related

Description :

NVIDIA Unix security team reports :

Security vulnerability CVE-2012-0946 in the NVIDIA UNIX driver was
disclosed to NVIDIA on March 20th, 2012. The vulnerability makes it
possible for an attacker who has read and write access to the GPU
device nodes to reconfigure GPUs to gain access to arbitrary system
memory. NVIDIA is not aware of any reports of this vulnerability,
outside of the disclosure which was made privately to NVIDIA.

NVIDIA has identified the root cause of the vulnerability and has
released updated drivers which close it. [NVIDIA encourages] all users
with Geforce 8 or newer, G80 Quadro or newer, and all Tesla GPUs to
update their drivers to 295.40 or later.

Later, it was additionally discovered that similar exploit could be
achieved through remapping of VGA window :

NVIDIA received notification of a security exploit that uses NVIDIA
UNIX device files to map and program registers to redirect the VGA
window. Through the VGA window, the exploit can access any region of
physical system memory. This arbitrary memory access can be further
exploited, for example, to escalate user privileges.

See also :

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.2
Public Exploit Available : true

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 59086 ()

Bugtraq ID:

CVE ID: CVE-2012-0946

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