USN-1291-1: Linux kernel vulnerabilities

Ubuntu Security Notice USN-1291-1

8th December, 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 the kernel.

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 version:

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2011-4077, CVE-2011-4132, CVE-2011-4330