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Ubuntu 12.04 LTS USN-1930-1 Critical: Kernel OMAP4 Security Issues

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Calendar Grey August 20, 2013
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Ubuntu 12.04 LTS has received important kernel updates aimed at fixing vulnerabilities in OMAP4 architecture, boosting overall system security and performance.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-ti-omap4: Linux kernel for OMAP4

Details:

An information leak was discovered in the Linux kernel's fanotify

interface. A local user could exploit this flaw to obtain sensitive

information from kernel memory. (CVE-2013-2148)

Kees Cook discovered a format string vulnerability in the Broadcom B43

wireless driver for the Linux kernel. A local user could exploit this flaw

to gain administrative privileges. (CVE-2013-2852)

Topics%20covered

Topics Covered

security advisory information leak format string kernel ubuntu

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1436-omap4    3.2.0-1436.55

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-1930-1

CVE-2013-2148, CVE-2013-2852

Severity
critical
Lowest
Low
Medium
High
Critical

August 20, 2013

Topics%20covered

Topics Covered

security advisory information leak format string kernel ubuntu

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1436.55

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