Audit Linux privileges now to limit compromise, escalation, and system-wide damage. Review Linux Privileges×

Alerts This Week
Warning Icon 1 510
Alerts This Week
Warning Icon 1 510

Ubuntu 16.04 LTS: USN-2965-4 moderate: Kernel USB Denial Of Service

ubuntu
Calendar Grey May 6, 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-snapdragon: Linux kernel for Snapdragon Processors

Details:

Jann Horn discovered that the extended Berkeley Packet Filter (eBPF)

implementation in the Linux kernel did not properly reference count file

descriptors, leading to a use-after-free. A local unprivileged attacker

could use this to gain administrative privileges.

Ralf Spenneberg discovered that the USB sound subsystem in the Linux kernel

did not properly validate USB device descriptors. An attacker with physical

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

(CVE-2016-2184)

Ralf Spenneberg discovered that the ATI Wonder Remote II USB driver in the

Linux kernel did not properly validate USB device descriptors. An attacker

with physical access could use this to cause a denial of service (system

crash). (CVE-2016-2185)

Ralf Spenneberg discovered that the PowerMate USB driver in the Linux

kernel did not properly validate US...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel system crash linux-snapdragon eBPF

Update Instructions

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

Ubuntu 16.04 LTS:
  linux-image-4.4.0-1013-snapdragon  4.4.0-1013.14

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-2965-4

https://ubuntu.com/security/notices/USN-2965-1

CVE-2016-2184, CVE-2016-2185, CVE-2016-2186, CVE-2016-2188,

CVE-2016-3136, CVE-2016-3137, CVE-2016-3138, CVE-2016-3140,

CVE-2016-3156, CVE-2016-3157, CVE-2016-3672, CVE-2016-3689,

CVE-2016-3951, CVE-2016-3955, CVE-2016-4557

May 06, 2016

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel system crash linux-snapdragon eBPF

Package Information

https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1013.14

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.