USN-3326-1: Linux kernel vulnerability

Published Jun 22, 2017
·
Updated

It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges

Affected Software

24 affected componentsFixes available
All of the following
ubuntu/linux-image-powerpc-smp<4.8.0.56.69
4.8.0.56.69
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-powerpc-e500mc<4.8.0.56.69
4.8.0.56.69
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-4.8.0-56-powerpc-smp<4.8.0-56.61
4.8.0-56.61
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-4.8.0-56-powerpc-e500mc<4.8.0-56.61
4.8.0-56.61
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-4.8.0-56-lowlatency<4.8.0-56.61
4.8.0-56.61
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-generic<4.8.0.56.69
4.8.0.56.69
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-4.8.0-56-generic<4.8.0-56.61
4.8.0-56.61
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-lowlatency<4.8.0.56.69
4.8.0.56.69
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-4.8.0-56-generic-lpae<4.8.0-56.61
4.8.0-56.61
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-generic-lpae<4.8.0.56.69
4.8.0.56.69
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-powerpc64-emb<4.8.0.56.69
4.8.0.56.69
Ubuntu Ubuntu=16.10
All of the following
ubuntu/linux-image-4.8.0-56-powerpc64-emb<4.8.0-56.61
4.8.0-56.61
Ubuntu Ubuntu=16.10

Event History

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

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-3326-1?

The severity of USN-3326-1 is high.

2

How does the Linux kernel vulnerability (USN-3326-1) occur?

The vulnerability occurs because the stack guard page for processes in the Linux kernel is not sufficiently large enough to prevent overlapping with the heap.

3

What can an attacker do with the Linux kernel vulnerability (USN-3326-1)?

An attacker can leverage this vulnerability with another vulnerability to execute arbitrary code and gain administrative privileges.

4

Which versions of Ubuntu are affected by the Linux kernel vulnerability (USN-3326-1)?

Ubuntu version 16.10 is affected by this vulnerability.

5

How can I fix the Linux kernel vulnerability (USN-3326-1)?

To fix the vulnerability, update your Ubuntu system to the specified versions of the Linux kernel packages mentioned in the Ubuntu Security Notice.

Contact

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