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Ubuntu 17.10: USN-3617-3 Critical: Kernel Denial Of Service Risks

ubuntu
Calendar Grey April 4, 2018
Scroller Ubuntu Esm H88
Multiple security vulnerabilities found in the Linux kernel for Raspberry Pi 2, risking system stability and crashes.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

It was discovered that a race condition leading to a use-after-free

vulnerability existed in the ALSA PCM subsystem of the Linux kernel. A

local attacker could use this to cause a denial of service (system crash)

or possibly execute arbitrary code. (CVE-2017-0861)

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

network namespaces implementation in the Linux kernel. A local attacker

could use this to cause a denial of service (system crash) or possibly

execute arbitrary code. (CVE-2017-15129)

Andrey Konovalov discovered that the usbtest device driver in the Linux

kernel did not properly validate endpoint metadata. A physically proximate

attacker could use this to cause a denial of service (system crash).

(CVE-2017-16532)

Andrey Konovalov discovered that the SoundGraph iMON USB driver in the

Linux ker...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel local attack system crash use-after-free

Update Instructions

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

Ubuntu 17.10:
  linux-image-4.13.0-1016-raspi2  4.13.0-1016.17
  linux-image-raspi2              4.13.0.1016.14

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-3617-3

https://ubuntu.com/security/notices/USN-3617-1

CVE-2017-0861, CVE-2017-15129, CVE-2017-16532, CVE-2017-16537,

CVE-2017-16645, CVE-2017-16646, CVE-2017-16647, CVE-2017-16649,

CVE-2017-16650, CVE-2017-16994, CVE-2017-17448, CVE-2017-17450,

CVE-2017-17741, CVE-2017-17805, CVE-2017-17806, CVE-2017-17807,

CVE-2017-18204, CVE-2018-1000026, CVE-2018-5332, CVE-2018-5333,

CVE-2018-5344

Severity
critical
Lowest
Low
Medium
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Critical

April 04, 2018

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel local attack system crash use-after-free

Package Information

https://launchpad.net/ubuntu/+source/linux-raspi2/4.13.0-1016.17

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