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Ubuntu 12.04 LTS: 2561-1 Moderate: Kernel OMAP4 Denial of Service

ubuntu
Calendar Grey April 8, 2015
Dist Ubuntu Esm H88
Numerous security flaws in the Ubuntu core were addressed on March 12, 2016, impacting overall system reliability and user privilege management.
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:

It was discovered that the Linux kernel's Infiniband subsystem did not

properly sanitize its input parameters while registering memory regions

from userspace. A local user could exploit this flaw to cause a denial of

service (system crash) or to potentially gain administrative privileges.

(CVE-2014-8159)

An integer overflow was discovered in the stack randomization feature of

the Linux kernel on 64 bit platforms. A local attacker could exploit this

flaw to bypass the Address Space Layout Randomization (ASLR) mitigation

mechanism. (CVE-2015-1593)

An information leak was discovered in the Linux kernel's handling of

userspace configuration of the link layer control (LLC). A local user could

exploit this flaw to read data from other sysctl settings. (CVE-2015-2041)

An information leak was discovered in how the Linux kernel handles setting

...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak update instructions ubuntu linux kernel administrative privileges

Update Instructions

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

Ubuntu 12.04 LTS:
  linux-image-3.2.0-1462-omap4    3.2.0-1462.82

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-2561-1

CVE-2014-8159, CVE-2015-1593, CVE-2015-2041, CVE-2015-2042

Severity
important
Lowest
Low
Medium
High
Critical

April 08, 2015

Topics%20covered

Topics Covered

security advisory denial of service information leak update instructions ubuntu linux kernel administrative privileges

Package Information

https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1462.82

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