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Ubuntu 14.04 LTS USN-2614-1 Medium: Linux Kernel Threats Resolved

ubuntu
Calendar Grey May 20, 2015
Dist Ubuntu Esm H88
=========================================================================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:

Vincent Tondellier discovered an integer overflow in the Linux kernel's

netfilter connection tracking accounting of loaded extensions. An attacker

on the local area network (LAN) could potential exploit this flaw to cause

a denial of service (system crash of targeted system). (CVE-2014-9715)

Jan Beulich discovered the Xen virtual machine subsystem of the Linux

kernel did not properly restrict access to PCI command registers. A local

guest user could exploit this flaw to cause a denial of service (host

crash). (CVE-2015-2150)

A privilege escalation was discovered in the fork syscal vi the int80 entry

on 64 bit kernels with 32 bit emulation support. An unprivileged local

attacker could exploit this flaw to increase their privileges on the

system. (CVE-2015-2830)

A memory corruption issue was discovered in AES decryption when using the

Intel AES-NI accel...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service privilege escalation Ubuntu kernel integer overflow medium

Update Instructions

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

Ubuntu 14.04 LTS:
  linux-image-3.13.0-53-generic   3.13.0-53.88
  linux-image-3.13.0-53-generic-lpae  3.13.0-53.88
  linux-image-3.13.0-53-lowlatency  3.13.0-53.88
  linux-image-3.13.0-53-powerpc-e500  3.13.0-53.88
  linux-image-3.13.0-53-powerpc-e500mc  3.13.0-53.88
  linux-image-3.13.0-53-powerpc-smp  3.13.0-53.88
  linux-image-3.13.0-53-powerpc64-emb  3.13.0-53.88
  linux-image-3.13.0-53-powerpc64-smp  3.13.0-53.88

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-2614-1

CVE-2014-9715, CVE-2015-2150, CVE-2015-2830, CVE-2015-3331

Severity
medium
Lowest
Low
Medium
High
Critical

May 20, 2015

Topics%20covered

Topics Covered

security advisory denial of service privilege escalation Ubuntu kernel integer overflow medium

Package Information

https://launchpad.net/ubuntu/+source/linux/3.13.0-53.88

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