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Ubuntu 12.04 LTS Advisory USN-2259-1 Critical Kernel Crash Risk

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Calendar Grey June 27, 2014
Scroller Ubuntu
A number of kernel vulnerabilities have been addressed in Ubuntu 12.04 LTS. It's advisable to upgrade your system promptly to reduce potential threats.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

Details:

Salva Peiró discovered an information leak in the Linux kernel's media-device driver. A local attacker could exploit this flaw to obtain sensitive

information from kernel memory. (CVE-2014-1739)

A bounds check error was discovered in the socket filter subsystem of the

Linux kernel. A local user could exploit this flaw to cause a denial of

service (system crash) via crafted BPF instructions. (CVE-2014-3144)

A remainder calculation error was discovered in the socket filter subsystem

of the Linux kernel. A local user could exploit this flaw to cause a denial

of service (system crash) via crafted BPF instructions. (CVE-2014-3145)

Topics%20covered

Topics Covered

security advisory denial of service information leak kernel update critical ubuntu system crash

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-65-generic    3.2.0-65.98
  linux-image-3.2.0-65-generic-pae  3.2.0-65.98
  linux-image-3.2.0-65-highbank   3.2.0-65.98
  linux-image-3.2.0-65-omap       3.2.0-65.98
  linux-image-3.2.0-65-powerpc-smp  3.2.0-65.98
  linux-image-3.2.0-65-powerpc64-smp  3.2.0-65.98
  linux-image-3.2.0-65-virtual    3.2.0-65.98

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-2259-1

CVE-2014-1739, CVE-2014-3144, CVE-2014-3145

Severity
critical
Lowest
Low
Medium
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Critical

June 27, 2014

Topics%20covered

Topics Covered

security advisory denial of service information leak kernel update critical ubuntu system crash

Package Information

https://launchpad.net/ubuntu/+source/linux/3.2.0-65.98

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