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Ubuntu 14.04 LTS: USN-2989-1 Moderate: Kernel Threat Mitigation

ubuntu
Calendar Grey June 1, 2016
Scroller Ubuntu
=========================================================================Ubuntu Security Notice USN-
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

Details:

Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux

kernel incorrectly enables scatter/gather I/O. A remote attacker could use

this to obtain potentially sensitive information from kernel memory.

(CVE-2016-2117)

Jason A. Donenfeld discovered multiple out-of-bounds reads in the OZMO USB

over wifi device drivers in the Linux kernel. A remote attacker could use

this to cause a denial of service (system crash) or obtain potentially

sensitive information from kernel memory. (CVE-2015-4004)

Andy Lutomirski discovered a race condition in the Linux kernel's

translation lookaside buffer (TLB) handling of flush events. A local

attacker could use this to cause a denial of service or possibly leak

sensitive information. (CVE-2016-2069)

Ralf Spenneberg discovered that the Linux kernel's GTCO digitizer USB

device driver did not properly validate endpoint descriptor...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory moderate information leak Ubuntu kernel system crash

Update Instructions

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

Ubuntu 14.04 LTS:
  linux-image-3.13.0-87-generic   3.13.0-87.133
  linux-image-3.13.0-87-generic-lpae  3.13.0-87.133
  linux-image-3.13.0-87-lowlatency  3.13.0-87.133
  linux-image-3.13.0-87-powerpc-e500  3.13.0-87.133
  linux-image-3.13.0-87-powerpc-e500mc  3.13.0-87.133
  linux-image-3.13.0-87-powerpc-smp  3.13.0-87.133
  linux-image-3.13.0-87-powerpc64-emb  3.13.0-87.133
  linux-image-3.13.0-87-powerpc64-smp  3.13.0-87.133

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-2989-1

CVE-2015-4004, CVE-2016-2069, CVE-2016-2117, CVE-2016-2187,

CVE-2016-3672, CVE-2016-3951, CVE-2016-3955, CVE-2016-4485,

CVE-2016-4486, CVE-2016-4581

Severity
important
Lowest
Low
Medium
High
Critical

June 01, 2016

Topics%20covered

Topics Covered

security advisory moderate information leak Ubuntu kernel system crash

Package Information

https://launchpad.net/ubuntu/+source/linux/3.13.0-87.133

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