[USN-1291-1] Linux kernel vulnerabilities

John Johansen john.johansen at canonical.com
Thu Dec 8 11:07:30 UTC 2011


==========================================================================
Ubuntu Security Notice USN-1291-1
December 08, 2011

linux vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 8.04 LTS

Summary:

Several security issues were fixed in XXX-APP-XXX.

Software Description:
- linux: Linux kernel

Details:

A bug was discovered in the XFS filesystem's handling of pathnames. A local
attacker could exploit this to crash the system, leading to a denial of
service, or gain root privileges. (CVE-2011-4077)

A flaw was found in the Journaling Block Device (JBD). A local attacker
able to mount ext3 or ext4 file systems could exploit this to crash the
system, leading to a denial of service. (CVE-2011-4132)

Clement Lecigne discovered a bug in the HFS file system bounds checking.
When a malformed HFS file system is mounted a local user could crash the
system or gain root privileges. (CVE-2011-4330)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 8.04 LTS:
  linux-image-2.6.24-30-386       2.6.24-30.97
  linux-image-2.6.24-30-generic   2.6.24-30.97
  linux-image-2.6.24-30-hppa32    2.6.24-30.97
  linux-image-2.6.24-30-hppa64    2.6.24-30.97
  linux-image-2.6.24-30-itanium   2.6.24-30.97
  linux-image-2.6.24-30-lpia      2.6.24-30.97
  linux-image-2.6.24-30-lpiacompat  2.6.24-30.97
  linux-image-2.6.24-30-mckinley  2.6.24-30.97
  linux-image-2.6.24-30-openvz    2.6.24-30.97
  linux-image-2.6.24-30-powerpc   2.6.24-30.97
  linux-image-2.6.24-30-powerpc-smp  2.6.24-30.97
  linux-image-2.6.24-30-powerpc64-smp  2.6.24-30.97
  linux-image-2.6.24-30-rt        2.6.24-30.97
  linux-image-2.6.24-30-server    2.6.24-30.97
  linux-image-2.6.24-30-sparc64   2.6.24-30.97
  linux-image-2.6.24-30-sparc64-smp  2.6.24-30.97
  linux-image-2.6.24-30-virtual   2.6.24-30.97
  linux-image-2.6.24-30-xen       2.6.24-30.97

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1291-1
  CVE-2011-4077, CVE-2011-4132, CVE-2011-4330

Package Information:
  https://launchpad.net/ubuntu/+source/linux/2.6.24-30.97


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