Otkrivena su i ispravljena dva propusta u radu jezgre operacijskog sustava Ubuntu 10.04 LTS. Zloćudni korisnici su ih mogli iskoristiti za izazivanje DoS stanja.
Paket:
Linux kernel 2.6.x
Operacijski sustavi:
Ubuntu Linux 10.04
Kritičnost:
6.3
Problem:
cjelobrojno prepisivanje, pogreška u programskoj komponenti
Iskorištavanje:
lokalno
Posljedica:
uskraćivanje usluga (DoS)
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2012-0044, CVE-2012-2372
Izvorni ID preporuke:
USN-1555-1
Izvor:
Ubuntu
Problem:
Uočeno je da dolazi do cjelobrojnog prepisivanja koji uzrokuje korupciju memorije te greške u implementaciji protokola RDS (eng. Reliable Datagram Sockets).
Posljedica:
Lokalni napadač može navedene ranjivosti iskoristiti za rušenje ranjivog sustava.
==========================================================================
Ubuntu Security Notice USN-1555-1
September 05, 2012
linux vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description:
- linux: Linux kernel
Details:
Chen Haogang discovered an integer overflow that could result in memory
corruption. A local unprivileged user could use this to crash the system.
(CVE-2012-0044)
A flaw was found in the Linux kernel's Reliable Datagram Sockets (RDS)
protocol implementation. A local, unprivileged user could use this flaw to
cause a denial of service. (CVE-2012-2372)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 10.04 LTS:
linux-image-2.6.32-42-386 2.6.32-42.96
linux-image-2.6.32-42-generic 2.6.32-42.96
linux-image-2.6.32-42-generic-pae 2.6.32-42.96
linux-image-2.6.32-42-ia64 2.6.32-42.96
linux-image-2.6.32-42-lpia 2.6.32-42.96
linux-image-2.6.32-42-powerpc 2.6.32-42.96
linux-image-2.6.32-42-powerpc-smp 2.6.32-42.96
linux-image-2.6.32-42-powerpc64-smp 2.6.32-42.96
linux-image-2.6.32-42-preempt 2.6.32-42.96
linux-image-2.6.32-42-server 2.6.32-42.96
linux-image-2.6.32-42-sparc64 2.6.32-42.96
linux-image-2.6.32-42-sparc64-smp 2.6.32-42.96
linux-image-2.6.32-42-versatile 2.6.32-42.96
linux-image-2.6.32-42-virtual 2.6.32-42.96
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1555-1
CVE-2012-0044, CVE-2012-2372
Package Information:
https://launchpad.net/ubuntu/+source/linux/2.6.32-42.96
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