U radu jezgre operacijskog sustava Ubuntu 10.04 uočen je novi sigurnosni propust kojeg lokalni zloćudni korisnik može iskoristiti za dobivanje većih ovlasti te rušenje ranjivog sustava.
Paket:
Linux kernel 3.x
Operacijski sustavi:
Ubuntu Linux 10.04
Kritičnost:
5.2
Problem:
neodgovarajuće rukovanje memorijom
Iskorištavanje:
lokalno
Posljedica:
dobivanje većih privilegija, uskraćivanje usluga (DoS)
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2012-2133
Izvorni ID preporuke:
USN-1468-1
Izvor:
Ubuntu
Problem:
Problem sigurnosti je posljedica pogrešnog rukovanja memorijom uz omogućenu "hugetlb" opciju.
Posljedica:
Lokalni napadač spomenuti propust može iskoristiti za napad uskraćivanjem usluga (DoS) te za dobivanje većih privilegija u sustavu.
==========================================================================
Ubuntu Security Notice USN-1468-1
June 12, 2012
linux vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.04 LTS
Summary:
The system could be made to crash or run programs as an administrator.
Software Description:
- linux: Linux kernel
Details:
Schacher Raindel discovered a flaw in the Linux kernel's memory handling
when hugetlb is enabled. An unprivileged local attacker could exploit this
flaw to cause a denial of service and potentially gain higher privileges.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 10.04 LTS:
linux-image-2.6.32-41-386 2.6.32-41.90
linux-image-2.6.32-41-generic 2.6.32-41.90
linux-image-2.6.32-41-generic-pae 2.6.32-41.90
linux-image-2.6.32-41-ia64 2.6.32-41.90
linux-image-2.6.32-41-lpia 2.6.32-41.90
linux-image-2.6.32-41-powerpc 2.6.32-41.90
linux-image-2.6.32-41-powerpc-smp 2.6.32-41.90
linux-image-2.6.32-41-powerpc64-smp 2.6.32-41.90
linux-image-2.6.32-41-preempt 2.6.32-41.90
linux-image-2.6.32-41-server 2.6.32-41.90
linux-image-2.6.32-41-sparc64 2.6.32-41.90
linux-image-2.6.32-41-sparc64-smp 2.6.32-41.90
linux-image-2.6.32-41-versatile 2.6.32-41.90
linux-image-2.6.32-41-virtual 2.6.32-41.90
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1468-1
CVE-2012-2133
Package Information:
https://launchpad.net/ubuntu/+source/linux/2.6.32-41.90
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