Uočen je sigurnosni propust u radu jezgre operacijskog sustava Ubuntu 11.10 koji je moguće iskoristiti za izvodenje napada uskraćivanja usluge (eng. Denial of Service).
Paket:
Linux kernel 3.x
Operacijski sustavi:
Ubuntu Linux 11.10
Kritičnost:
4.6
Problem:
pogreška u programskoj komponenti
Iskorištavanje:
lokalno
Posljedica:
uskraćivanje usluga (DoS)
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2011-3347
Izvorni ID preporuke:
USN-1412-1
Izvor:
Ubuntu
Problem:
Propust je posljedica pogrešaka u komponenti VLAN (virtual lan) i be2net upravljačkim programima.
Posljedica:
Navedeni propust moguće je iskoristiti za izvođenje DoS napada.
Rješenje:
Svim korisnicima se savjetuje korištenje službene programske nadogradnje.
==========================================================================
Ubuntu Security Notice USN-1412-1
March 29, 2012
linux vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
Summary:
Several security issues were fixed in the kernel.
Software Description:
- linux: Linux kernel
Details:
Somnath Kotur discovered an error in the Linux kernel's VLAN (virtual lan)
and be2net drivers. An attacker on the local network could exploit this
flaw to cause a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 11.10:
linux-image-3.0.0-17-generic 3.0.0-17.30
linux-image-3.0.0-17-generic-pae 3.0.0-17.30
linux-image-3.0.0-17-omap 3.0.0-17.30
linux-image-3.0.0-17-powerpc 3.0.0-17.30
linux-image-3.0.0-17-powerpc-smp 3.0.0-17.30
linux-image-3.0.0-17-powerpc64-smp 3.0.0-17.30
linux-image-3.0.0-17-server 3.0.0-17.30
linux-image-3.0.0-17-virtual 3.0.0-17.30
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.
References:
http://www.ubuntu.com/usn/usn-1412-1
CVE-2011-3347
Package Information:
https://launchpad.net/ubuntu/+source/linux/3.0.0-17.30
Posljednje sigurnosne preporuke