Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 542
Alerts This Week
Warning Icon 1 542

Ubuntu 8.04 LTS: USN-1291-1 Critical Denial Of Service Issues

ubuntu
Calendar Grey December 8, 2011
Scroller Ubuntu
Ubuntu users urged to address critical vulnerabilities found in the kernel, with detailed steps provided for essential updates and resolutions.
Several security issues were fixed in XXX-APP-XXX.

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)

Topics%20covered

Topics Covered

security advisory denial of service critical kernel ubuntu linux

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

https://ubuntu.com/security/notices/USN-1291-1

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

Severity
critical
Lowest
Low
Medium
High
Critical

December 08, 2011

Topics%20covered

Topics Covered

security advisory denial of service critical kernel ubuntu linux

Package Information

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

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.