Omogućena je nadogradnja pogonskog programa za NVIDIA grafičke kartice. Trenutni program omogućava zlonamjernom korisniku preuzimanje ovlasti nad sustavom kao root korisnik.
Paket:
nvidia-graphics-drivers
Operacijski sustavi:
Ubuntu Linux 10.04, Ubuntu Linux 11.04, Ubuntu Linux 11.10, Ubuntu Linux 12.04
Problem:
nepravilno rukovanje ovlastima
Iskorištavanje:
lokalno
Posljedica:
neovlašteni pristup sustavu
Rješenje:
programska zakrpa proizvođača
Izvorni ID preporuke:
USN-1523-1
Izvor:
Ubuntu
Problem:
Problem proizlazi zbog neispravno postavljenih mogućnosti namještanja postavki za grafičku karticu što omogućava proizvoljan pristup sistemskoj memoriji.
Posljedica:
Zbog mogućnosti pristupa sistemskoj memoriji, zlonamjerni korisnik je mogao pristupiti sustavu s root ovlastima.
==========================================================================
Ubuntu Security Notice USN-1523-1
August 06, 2012
nvidia-graphics-drivers, nvidia-graphics-drivers-173,
nvidia-graphics-drivers-173-updates, nvidia-graphics-drivers-updates
vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
Summary:
NVIDIA graphics drivers could be made to run programs as an administrator.
Software Description:
- nvidia-graphics-drivers: NVIDIA binary Xorg driver
- nvidia-graphics-drivers-173: NVIDIA binary Xorg driver
- nvidia-graphics-drivers-173-updates: NVIDIA binary Xorg driver
- nvidia-graphics-drivers-updates: NVIDIA binary Xorg driver
Details:
It was discovered that the NVIDIA graphics drivers could be reconfigured to
gain access to arbitrary system memory. A local attacker could use this
issue to gain root privileges.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
nvidia-173 173.14.35-0ubuntu0.2
nvidia-173-updates 173.14.35-0ubuntu0.2
nvidia-current 295.40-0ubuntu1.1
nvidia-current-updates 295.49-0ubuntu0.2
Ubuntu 11.10:
nvidia-173 173.14.30-0ubuntu8.2
nvidia-173-updates 173.14.30-0ubuntu5.2
nvidia-current 280.13-0ubuntu6.2
nvidia-current-updates 295.20-0ubuntu0.4
Ubuntu 11.04:
nvidia-173 173.14.30-0ubuntu1.2
nvidia-current 270.41.06-0ubuntu1.2
Ubuntu 10.04 LTS:
nvidia-173 173.14.22-0ubuntu11.2
nvidia-current 195.36.24-0ubuntu1~10.04.3
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1523-1
https://launchpad.net/bugs/1033452
Package Information:
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers/295.40-0ubuntu1.1
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-173/173.14.35-0ubuntu0.2
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-173-updates/173.14.35-0ubuntu0.2
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-updates/295.49-0ubuntu0.2
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers/280.13-0ubuntu6.2
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-173/173.14.30-0ubuntu8.2
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-173-updates/173.14.30-0ubuntu5.2
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-updates/295.20-0ubuntu0.4
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers/270.41.06-0ubuntu1.2
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-173/173.14.30-0ubuntu1.2
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers/195.36.24-0ubuntu1~10.04.3
https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-173/173.14.22-0ubuntu11.2
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