Executive Summary

Summary
Title Linux kernel vulnerability
Informations
Name USN-3159-1 First vendor Publication 2016-12-20
Vendor Ubuntu Last vendor Modification 2016-12-20
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:C/I:N/A:N)
Cvss Base Score 4.7 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS

Summary:

The system could be made to expose sensitive information.

Software Description: - linux: Linux kernel

Details:

It was discovered that a race condition existed in the procfs environ_read function in the Linux kernel, leading to an integer underflow. A local attacker could use this to expose sensitive information (kernel memory).

Update instructions:

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

Ubuntu 12.04 LTS:
linux-image-3.2.0-119-generic 3.2.0-119.162
linux-image-3.2.0-119-generic-pae 3.2.0-119.162
linux-image-3.2.0-119-highbank 3.2.0-119.162
linux-image-3.2.0-119-omap 3.2.0-119.162
linux-image-3.2.0-119-powerpc-smp 3.2.0-119.162
linux-image-3.2.0-119-powerpc64-smp 3.2.0-119.162
linux-image-3.2.0-119-virtual 3.2.0-119.162
linux-image-generic 3.2.0.119.134
linux-image-generic-pae 3.2.0.119.134
linux-image-highbank 3.2.0.119.134
linux-image-omap 3.2.0.119.134
linux-image-powerpc-smp 3.2.0.119.134
linux-image-powerpc64-smp 3.2.0.119.134
linux-image-virtual 3.2.0.119.134

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:
http://www.ubuntu.com/usn/usn-3159-1
CVE-2016-7916

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.2.0-119.162

Original Source

Url : http://www.ubuntu.com/usn/USN-3159-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 2580

Nessus® Vulnerability Scanner

Date Description
2017-05-01 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2016-1089.nasl - Type : ACT_GATHER_INFO
2017-02-21 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0494-1.nasl - Type : ACT_GATHER_INFO
2017-02-10 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0437-1.nasl - Type : ACT_GATHER_INFO
2017-01-31 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0333-1.nasl - Type : ACT_GATHER_INFO
2016-12-21 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3159-1.nasl - Type : ACT_GATHER_INFO
2016-12-21 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3160-1.nasl - Type : ACT_GATHER_INFO
2016-12-21 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3160-2.nasl - Type : ACT_GATHER_INFO
2016-12-12 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-1431.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2016-12-22 13:22:45
  • Multiple Updates
2016-12-21 00:22:26
  • First insertion