Otkrivena je i uklonjena ranjivost u radu programskog paketa linux-ec2. Lokalni ju je napadač mogao iskoristiti za stjecanje većih ovlasti i DoS napad.
Paket:
linux-ec2
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-1469-1
Izvor:
Ubuntu
Problem:
Sigurnosna ranjivost je posljedica pogrešnog rukovanja memorijom ukoliko je omogućena opcija "hugetlb" jer postoji pogreška u "hugetlb" programskom kodu.
Posljedica:
Lokalni napadač spomenutu ranjivost može iskoristiti za napad uskraćivanjem usluga (eng. Denial of Service) te dobivanje većih privilegija u sustavu.
==========================================================================
Ubuntu Security Notice USN-1469-1
June 12, 2012
linux-ec2 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-ec2: Linux kernel for EC2
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-2.6.32-345-ec2 2.6.32-345.49
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1469-1
CVE-2012-2133
Package Information:
https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-345.49
Posljednje sigurnosne preporuke