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Ubuntu 10.04 LTS USN-2064-1 Critical: Kernel Privilege Escalation and Fixes

ubuntu
Calendar Grey January 3, 2014
Scroller Ubuntu
Addressing several Linux kernel vulnerabilities identified in Ubuntu Security Notice USN-2064-1 is crucial for system integrity and user rights protection
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

Details:

Stephan Mueller reported an error in the Linux kernel's ansi cprng random

number generator. This flaw makes it easier for a local attacker to break

cryptographic protections. (CVE-2013-4345)

A flaw was discovered in the Linux kernel's IP Virtual Server (IP_VS)

support. A local user with the CAP_NET_ADMIN capability could exploit this

flaw to gain additional administrative privileges. (CVE-2013-4588)

Nico Golde and Fabian Yamaguchi reported a flaw in the Linux kernel's

debugfs filesystem. An administrative local user could exploit this flaw to

cause a denial of service (OOPS). (CVE-2013-6378)

Nico Golde reported a flaw in the Linux kernel's userspace IO (uio) driver.

A local user could exploit this flaw to cause a denial of service (memory

corruption) or possibly gain privileges. (CVE-2013-6763)

Topics%20covered

Topics Covered

security advisory denial of service critical issue privilege escalation kernel fix ubuntu

Update Instructions

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-55-386       2.6.32-55.117
  linux-image-2.6.32-55-generic   2.6.32-55.117
  linux-image-2.6.32-55-generic-pae  2.6.32-55.117
  linux-image-2.6.32-55-ia64      2.6.32-55.117
  linux-image-2.6.32-55-lpia      2.6.32-55.117
  linux-image-2.6.32-55-powerpc   2.6.32-55.117
  linux-image-2.6.32-55-powerpc-smp  2.6.32-55.117
  linux-image-2.6.32-55-powerpc64-smp  2.6.32-55.117
  linux-image-2.6.32-55-preempt   2.6.32-55.117
  linux-image-2.6.32-55-server    2.6.32-55.117
  linux-image-2.6.32-55-sparc64   2.6.32-55.117
  linux-image-2.6.32-55-sparc64-smp  2.6.32-55.117
  linux-image-2.6.32-55-versatile  2.6.32-55.117
  linux-image-2.6.32-55-virtual   2.6.32-55.117

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

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References

https://ubuntu.com/security/notices/USN-2064-1

CVE-2013-4345, CVE-2013-4588, CVE-2013-6378, CVE-2013-6763

Severity
critical
Lowest
Low
Medium
High
Critical

January 03, 2014

Topics%20covered

Topics Covered

security advisory denial of service critical issue privilege escalation kernel fix ubuntu

Package Information

https://launchpad.net/ubuntu/+source/linux/2.6.32-55.117

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