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Ubuntu 12.04 LTS USN-1811-1 Critical: Linux Kernel Exploits

ubuntu
Calendar Grey May 1, 2013
Scroller Ubuntu
Tackling vital vulnerabilities in the Linux kernel within Ubuntu to bolster system protection and thwart potential attacks.
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:

Mathias Krause discovered an information leak in the Linux kernel's UDF

file system implementation. A local user could exploit this flaw to examine

some of the kernel's heap memory. (CVE-2012-6548)

Mathias Krause discovered an information leak in the Linux kernel's ISO

9660 CDROM file system driver. A local user could exploit this flaw to

examine some of the kernel's heap memory. (CVE-2012-6549)

An integer overflow was discovered in the Direct Rendering Manager (DRM)

subsystem for the i915 video driver in the Linux kernel. A local user could

exploit this flaw to cause a denial of service (crash) or potentially

escalate privileges. (CVE-2013-0913)

A format-string bug was discovered in the Linux kernel's ext3 filesystem

driver. A local user could exploit this flaw to possibly escalate

privileges on the system. (CVE-2013-1848)

A buff...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak critical privilege escalation ubuntu linux kernel

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1430-omap4    3.2.0-1430.39

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-1811-1

CVE-2012-6548, CVE-2012-6549, CVE-2013-0913, CVE-2013-1848,

CVE-2013-1860, CVE-2013-2634, CVE-2013-2635

Severity
critical
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Critical

May 01, 2013

Topics%20covered

Topics Covered

security advisory denial of service information leak critical privilege escalation ubuntu linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1430.39

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