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 1 523
Alerts This Week
Warning Icon 1 523

Ubuntu 8.04 LTS USN-1186-1 Critical: Multiple Kernel Flaws Exploited

ubuntu
Calendar Grey August 9, 2011
Scroller Ubuntu
Tackling various vulnerabilities in Ubuntu's advisory, crucial for ensuring system reliability and protection.
Multiple kernel flaws have been fixed.

Summary

Multiple kernel flaws have been fixed.

Software Description:

- linux: Linux kernel

Details:

Dan Rosenberg discovered that IPC structures were not correctly initialized

on 64bit systems. A local attacker could exploit this to read kernel stack

memory, leading to a loss of privacy. (CVE-2010-4073)

Steve Chen discovered that setsockopt did not correctly check MSS values. A

local attacker could make a specially crafted socket call to crash the

system, leading to a denial of service. (CVE-2010-4165)

Vladymyr Denysov discovered that Xen virtual CD-ROM devices were not

handled correctly. A local attacker in a guest could make crafted blkback

requests that would crash the host, leading to a denial of service.

(CVE-2010-4238)

Vegard Nossum discovered that memory garbage collection was not handled

correctly for active sockets. A local attacker could exploit this to

allocate all available kernel memory, leading to a denial of service.

(CVE-2010-4249)

Dan Carpenter discovered that the I...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory Ubuntu local exploit kernel flaw system crash

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       2.6.24-29.92
  linux-image-2.6.24-29-generic   2.6.24-29.92
  linux-image-2.6.24-29-hppa32    2.6.24-29.92
  linux-image-2.6.24-29-hppa64    2.6.24-29.92
  linux-image-2.6.24-29-itanium   2.6.24-29.92
  linux-image-2.6.24-29-lpia      2.6.24-29.92
  linux-image-2.6.24-29-lpiacompat  2.6.24-29.92
  linux-image-2.6.24-29-mckinley  2.6.24-29.92
  linux-image-2.6.24-29-openvz    2.6.24-29.92
  linux-image-2.6.24-29-powerpc   2.6.24-29.92
  linux-image-2.6.24-29-powerpc-smp  2.6.24-29.92
  linux-image-2.6.24-29-powerpc64-smp  2.6.24-29.92
  linux-image-2.6.24-29-rt        2.6.24-29.92
  linux-image-2.6.24-29-server    2.6.24-29.92
  linux-image-2.6.24-29-sparc64   2.6.24-29.92
  linux-image-2.6.24-29-sparc64-smp  2.6.24-29.92
  linux-image-2.6.24-29-virtual   2.6.24-29.92
  linux-image-2.6.24-29-xen       2.6.24-29.92

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

References

https://ubuntu.com/security/notices/USN-1186-1

CVE-2010-4073, CVE-2010-4165, CVE-2010-4238, CVE-2010-4249,

CVE-2010-4649, CVE-2011-0711, CVE-2011-1010, CVE-2011-1044,

CVE-2011-1090, CVE-2011-1170, CVE-2011-1171, CVE-2011-1172,

CVE-2011-1173, CVE-2011-2484, CVE-2011-2534

Severity
critical
Lowest
Low
Medium
High
Critical

August 09, 2011

Topics%20covered

Topics Covered

security advisory Ubuntu local exploit kernel flaw system crash

Package Information

https://launchpad.net/ubuntu/+source/linux/2.6.24-29.92

Get the latest News and Insights

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