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Ubuntu 17.04: 3314-1 Critical: Kernel Denial Of Service Risks

ubuntu
Calendar Grey June 7, 2017
Dist Ubuntu Esm H88
Recent Ubuntu updates address key kernel vulnerabilities to prevent denial of service attacks and mitigate code execution risks, reinforcing system security
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

- linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

It was discovered that the keyring implementation in the Linux kernel in

some situations did not prevent special internal keyrings from being joined

by userspace keyrings. A privileged local attacker could use this to bypass

module verification. (CVE-2016-9604)

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)

Daniel Jiang discovered that a race condition existed in the ipv4 ping

socket implementation in the Linux kernel. A local privileged attacker

could use this to cause a denial of service (system crash). (CVE-2017-2671)

JongHwan Kim discovered an out-of-bounds read in the TCP stack of the Linux

kernel. A local attacker could use this to cause a denial of service

(syst...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu kernel linux

Update Instructions

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

Ubuntu 17.04:
  linux-image-4.10.0-1006-raspi2  4.10.0-1006.8
  linux-image-4.10.0-22-generic   4.10.0-22.24
  linux-image-4.10.0-22-generic-lpae  4.10.0-22.24
  linux-image-4.10.0-22-lowlatency  4.10.0-22.24
  linux-image-generic             4.10.0.22.24
  linux-image-generic-lpae        4.10.0.22.24
  linux-image-lowlatency          4.10.0.22.24
  linux-image-raspi2              4.10.0.1006.8

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-3314-1

CVE-2016-9604, CVE-2017-0605, CVE-2017-2671, CVE-2017-7277,

CVE-2017-7472, CVE-2017-7618, CVE-2017-7645, CVE-2017-7889,

CVE-2017-7895, CVE-2017-7979, CVE-2017-8063, CVE-2017-8064,

CVE-2017-8067

Severity
critical
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Critical

June 07, 2017

Topics%20covered

Topics Covered

security advisory denial of service code execution Ubuntu kernel linux

Package Information

https://launchpad.net/ubuntu/+source/linux/4.10.0-22.24
https://launchpad.net/ubuntu/+source/linux-raspi2/4.10.0-1006.8

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