USN-3206-1: Linux kernel vulnerabilities

Published Feb 22, 2017
·
Updated

It was discovered that a use-after-free vulnerability existed in the block device layer of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2016-7910) Dmitry Vyukov discovered a use-after-free vulnerability in the sysioprioget() function in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2016-7911) Andrey Konovalov discovered a use-after-free vulnerability in the DCCP implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2017-6074)

Affected Software

32 affected componentsFixes available
All of the following
ubuntu/linux-image-3.2.0-1501-omap4<3.2.0-1501.128
3.2.0-1501.128
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-powerpc-smp<3.2.0.123.138
3.2.0.123.138
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-3.2.0-123-powerpc64-smp<3.2.0-123.166
3.2.0-123.166
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-3.2.0-123-generic-pae<3.2.0-123.166
3.2.0-123.166
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-3.2.0-123-highbank<3.2.0-123.166
3.2.0-123.166
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-3.2.0-123-generic<3.2.0-123.166
3.2.0-123.166
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-omap4<3.2.0.1501.96
3.2.0.1501.96
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-3.2.0-123-virtual<3.2.0-123.166
3.2.0-123.166
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-generic<3.2.0.123.138
3.2.0.123.138
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-generic-pae<3.2.0.123.138
3.2.0.123.138
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-highbank<3.2.0.123.138
3.2.0.123.138
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-3.2.0-123-powerpc-smp<3.2.0-123.166
3.2.0-123.166
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-virtual<3.2.0.123.138
3.2.0.123.138
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-powerpc64-smp<3.2.0.123.138
3.2.0.123.138
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-omap<3.2.0.123.138
3.2.0.123.138
Ubuntu Ubuntu=12.04
All of the following
ubuntu/linux-image-3.2.0-123-omap<3.2.0-123.166
3.2.0-123.166
Ubuntu Ubuntu=12.04

Event History

Feb 22, 2017
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the vulnerability ID for this Linux kernel vulnerability?

The vulnerability ID for this Linux kernel vulnerability is CVE-2016-7910.

2

What is the severity of CVE-2016-7910?

The severity of CVE-2016-7910 is high.

3

How does CVE-2016-7910 impact the Linux kernel?

CVE-2016-7910 can be exploited by a local attacker to cause a denial of service or possibly gain administrative privileges.

4

Which versions of Ubuntu are affected by CVE-2016-7910?

Ubuntu version 12.04 with the Linux kernel versions 3.2.0-1501.128, 3.2.0.123.138, 3.2.0-123.166, 3.2.0-123.166, 3.2.0-123.166, 3.2.0-123.166, 3.2.0.1501.96, 3.2.0-123.166, 3.2.0.123.138, 3.2.0.123.138, 3.2.0.123.138, 3.2.0-123.166, 3.2.0.123.138, 3.2.0.123.138, 3.2.0-123.166, 3.2.0.123.138, 3.2.0.123.138, 3.2.0.123.138, 3.2.0.123.138, 3.2.0.123.138 are affected by CVE-2016-7910.

5

How can I mitigate the CVE-2016-7910 vulnerability on Ubuntu 12.04?

To mitigate the CVE-2016-7910 vulnerability on Ubuntu 12.04, update the Linux kernel to version 3.2.0-1501.128 or later.

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