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Ubuntu 8.04 LTS: USN-1170-1 Critical Kernel Issues and DoS Threats

ubuntu
Calendar Grey July 15, 2011
Scroller Ubuntu
Numerous vulnerabilities fixed in Ubuntu 8.04 LTS kernel. It's crucial to update your system to ensure ongoing security and performance.
Multiple kernel flaws have been fixed.

Summary

Multiple kernel flaws have been fixed.

Software Description:

- linux: Linux kernel

Details:

Dan Rosenberg discovered that multiple terminal ioctls did not correctly

initialize structure memory. A local attacker could exploit this to read

portions of kernel stack memory, leading to a loss of privacy.

(CVE-2010-4076, CVE-2010-4077)

It was discovered that Xen did not correctly handle certain block requests.

A local attacker in a Xen guest could cause the Xen host to use all

available CPU resources, leading to a denial of service. (CVE-2010-4247)

It was discovered that the ICMP stack did not correctly handle certain

unreachable messages. If a remote attacker were able to acquire a socket

lock, they could send specially crafted traffic that would crash the

system, leading to a denial of service. (CVE-2010-4526)

Kees Cook reported that /proc/pid/stat did not correctly filter certain

memory locations. A local attacker could determine the memory layout of

processes in an attempt to i...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory DoS Ubuntu system update local attack kernel issue privacy loss

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       2.6.24-29.91
  linux-image-2.6.24-29-generic   2.6.24-29.91
  linux-image-2.6.24-29-hppa32    2.6.24-29.91
  linux-image-2.6.24-29-hppa64    2.6.24-29.91
  linux-image-2.6.24-29-itanium   2.6.24-29.91
  linux-image-2.6.24-29-lpia      2.6.24-29.91
  linux-image-2.6.24-29-lpiacompat  2.6.24-29.91
  linux-image-2.6.24-29-mckinley  2.6.24-29.91
  linux-image-2.6.24-29-openvz    2.6.24-29.91
  linux-image-2.6.24-29-powerpc   2.6.24-29.91
  linux-image-2.6.24-29-powerpc-smp  2.6.24-29.91
  linux-image-2.6.24-29-powerpc64-smp  2.6.24-29.91
  linux-image-2.6.24-29-rt        2.6.24-29.91
  linux-image-2.6.24-29-server    2.6.24-29.91
  linux-image-2.6.24-29-sparc64   2.6.24-29.91
  linux-image-2.6.24-29-sparc64-smp  2.6.24-29.91
  linux-image-2.6.24-29-virtual   2.6.24-29.91
  linux-image-2.6.24-29-xen       2.6.24-29.91

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

References

https://ubuntu.com/security/notices/USN-1170-1

CVE-2010-4076, CVE-2010-4077, CVE-2010-4247, CVE-2010-4526,

CVE-2011-0726, CVE-2011-1163, CVE-2011-1577, CVE-2011-1745,

CVE-2011-1746, CVE-2011-1747, CVE-2011-2022

Severity
critical
Lowest
Low
Medium
High
Critical

July 15, 2011

Topics%20covered

Topics Covered

security advisory DoS Ubuntu system update local attack kernel issue privacy loss

Package Information

https://launchpad.net/ubuntu/+source/linux/2.6.24-29.91

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