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[USN-1225-1] Linux kernel vulnerabilities
From: Marc Deslauriers <marc.deslauriers_at_nospam>Date: Tue Oct 04 2011 - 12:49:48 GMT
To: ubuntu-security-announce@lists.ubuntu.com
==========================================================================
Ubuntu Security Notice USN-1225-1
October 04, 2011
linux vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 8.04 LTS
Summary:
Multiple kernel flaws have been fixed.
Software Description:
- linux: Linux kernel
Details:
Timo Warns discovered that the EFI GUID partition table was not correctly
parsed. A physically local attacker that could insert mountable devices
could exploit this to crash the system or possibly gain root privileges.
(CVE-2011-1776)
Dan Rosenberg discovered that the IPv4 diagnostic routines did not
correctly validate certain requests. A local attacker could exploit this to
consume CPU resources, leading to a denial of service. (CVE-2011-2213)
Dan Rosenberg discovered that the Bluetooth stack incorrectly handled
certain L2CAP requests. If a system was using Bluetooth, a remote attacker
could send specially crafted traffic to crash the system or gain root
privileges. (CVE-2011-2497)
Fernando Gont discovered that the IPv6 stack used predictable fragment
identification numbers. A remote attacker could exploit this to exhaust
network resources, leading to a denial of service. (CVE-2011-2699)
Time Warns discovered that long symlinks were incorrectly handled on Be
filesystems. A local attacker could exploit this with a malformed Be
filesystem and crash the system, leading to a denial of service.
(CVE-2011-2928)
Darren Lavender discovered that the CIFS client incorrectly handled certain
large values. A remote attacker with a malicious server could exploit this
to crash the system or possibly execute arbitrary code as the root user.
(CVE-2011-3191)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 8.04 LTS:
linux-image-2.6.24-29-386 2.6.24-29.94
linux-image-2.6.24-29-generic 2.6.24-29.94
linux-image-2.6.24-29-hppa32 2.6.24-29.94
linux-image-2.6.24-29-hppa64 2.6.24-29.94
linux-image-2.6.24-29-itanium 2.6.24-29.94
linux-image-2.6.24-29-lpia 2.6.24-29.94
linux-image-2.6.24-29-lpiacompat 2.6.24-29.94
linux-image-2.6.24-29-mckinley 2.6.24-29.94
linux-image-2.6.24-29-openvz 2.6.24-29.94
linux-image-2.6.24-29-powerpc 2.6.24-29.94
linux-image-2.6.24-29-powerpc-smp 2.6.24-29.94
linux-image-2.6.24-29-powerpc64-smp 2.6.24-29.94
linux-image-2.6.24-29-rt 2.6.24-29.94
linux-image-2.6.24-29-server 2.6.24-29.94
linux-image-2.6.24-29-sparc64 2.6.24-29.94
linux-image-2.6.24-29-sparc64-smp 2.6.24-29.94
linux-image-2.6.24-29-virtual 2.6.24-29.94
linux-image-2.6.24-29-xen 2.6.24-29.94
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1225-1
CVE-2011-1776, CVE-2011-2213, CVE-2011-2497, CVE-2011-2699,
CVE-2011-2928, CVE-2011-3191
Package Information:
https://launchpad.net/ubuntu/+source/linux/2.6.24-29.94
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