Executive Summary

Summary
Title Linux kernel (Intel Euclid) vulnerability
Informations
Name USN-3633-1 First vendor Publication 2018-04-24
Vendor Ubuntu Last vendor Modification 2018-04-24
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:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 16.04 LTS

Summary:

The system could be made to crash or run programs as an administrator.

Software Description: - linux-euclid: Linux kernel for Intel Euclid systems

Details:

Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16995)

Update instructions:

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

Ubuntu 16.04 LTS:
linux-image-4.4.0-9026-euclid 4.4.0-9026.28
linux-image-euclid 4.4.0.9026.27

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://usn.ubuntu.com/usn/usn-3633-1
CVE-2017-16995

Package Information:
https://launchpad.net/ubuntu/+source/linux-euclid/4.4.0-9026.28

Original Source

Url : http://www.ubuntu.com/usn/USN-3633-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 2
Os 1
Os 2943

Nessus® Vulnerability Scanner

Date Description
2017-12-26 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4073.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2018-04-24 09:19:12
  • First insertion