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Ubuntu 14.04 LTS: USN-3335-1 Critical: Linux Kernel Flaws

ubuntu
Calendar Grey June 20, 2017
Dist Ubuntu Esm H88
Essential vulnerabilities addressed in Linux kernel for Ubuntu 14.04 may permit local intrusions leading to system failures.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

Details:

It was discovered that the stack guard page for processes in the Linux

kernel was not sufficiently large enough to prevent overlapping with the

heap. An attacker could leverage this with another vulnerability to execute

arbitrary code and gain administrative privileges (CVE-2017-1000364)

It was discovered that a use-after-free vulnerability in the core voltage

regulator driver of the Linux kernel. A local attacker could use this to

cause a denial of service or possibly execute arbitrary code.

(CVE-2014-9940)

It was discovered that a buffer overflow existed in the trace subsystem in

the Linux kernel. A privileged local attacker could use this to execute

arbitrary code. (CVE-2017-0605)

Roee Hay discovered that the parallel port printer driver in the Linux

kernel did not properly bounds check passed arguments. A local attacker

with write access to ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu update instructions local attack critical flaw Linux kernel

Update Instructions

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

Ubuntu 14.04 LTS:
  linux-image-3.13.0-121-generic  3.13.0-121.170
  linux-image-3.13.0-121-generic-lpae  3.13.0-121.170
  linux-image-3.13.0-121-lowlatency  3.13.0-121.170
  linux-image-3.13.0-121-powerpc-e500  3.13.0-121.170
  linux-image-3.13.0-121-powerpc-e500mc  3.13.0-121.170
  linux-image-3.13.0-121-powerpc-smp  3.13.0-121.170
  linux-image-3.13.0-121-powerpc64-emb  3.13.0-121.170
  linux-image-3.13.0-121-powerpc64-smp  3.13.0-121.170
  linux-image-generic             3.13.0.121.131
  linux-image-generic-lpae        3.13.0.121.131
  linux-image-generic-lpae-lts-saucy  3.13.0.121.131
  linux-image-generic-lpae-lts-trusty  3.13.0.121.131
  linux-image-generic-lts-quantal  3.13.0.121.131
  linux-image-generic-lts-raring  3.13.0.121.131
  linux-image-generic-lts-saucy   3.13.0.121.131
  linux-image-generic-lts-trusty  3.13.0.121.131
  linux-image-generic-pae         3.13.0.121.131
  linux-image-highbank            3.13.0.121.131
  linux-image-lowlatency          3.13.0.121.131
  linux-image-lowlatency-pae      3.13.0.121.131
  linux-image-omap                3.13.0.121.131
  linux-image-powerpc-e500        3.13.0.121.131
  linux-image-powerpc-e500mc      3.13.0.121.131
  linux-image-powerpc-smp         3.13.0.121.131
  linux-image-powerpc64-emb       3.13.0.121.131
  linux-image-powerpc64-smp       3.13.0.121.131
  linux-image-virtual             3.13.0.121.131

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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

https://ubuntu.com/security/notices/USN-3335-1

CVE-2014-9940, CVE-2017-0605, CVE-2017-1000363, CVE-2017-1000364,

CVE-2017-7294, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075,

CVE-2017-9076, CVE-2017-9077, CVE-2017-9242

Severity
critical
Lowest
Low
Medium
High
Critical

June 20, 2017

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu update instructions local attack critical flaw Linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux/3.13.0-121.170

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