Executive Summary

Summary
Title strongSwan vulnerability
Informations
Name USN-3774-1 First vendor Publication 2018-10-01
Vendor Ubuntu Last vendor Modification 2018-10-01
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:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

strongSwan could be made to crash or run programs if it received specially crafted network traffic.

Software Description: - strongswan: IPsec VPN solution

Details:

It was discovered that strongSwan incorrectly handled signature validation in the gmp plugin. A remote attacker could use this issue to cause strongSwan to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 18.04 LTS:
libstrongswan 5.6.2-1ubuntu2.3
strongswan 5.6.2-1ubuntu2.3

Ubuntu 16.04 LTS:
libstrongswan 5.3.5-1ubuntu3.8
strongswan 5.3.5-1ubuntu3.8

Ubuntu 14.04 LTS:
libstrongswan 5.1.2-0ubuntu2.11
strongswan 5.1.2-0ubuntu2.11

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/usn/usn-3774-1
CVE-2018-17540

Package Information:
https://launchpad.net/ubuntu/+source/strongswan/5.6.2-1ubuntu2.3
https://launchpad.net/ubuntu/+source/strongswan/5.3.5-1ubuntu3.8
https://launchpad.net/ubuntu/+source/strongswan/5.1.2-0ubuntu2.11

Original Source

Url : http://www.ubuntu.com/usn/USN-3774-1

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 132
Os 3
Os 2

Nessus® Vulnerability Scanner

Date Description
2018-11-27 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201811-16.nasl - Type : ACT_GATHER_INFO
2018-10-03 Name : The remote Debian host is missing a security update.
File : debian_DLA-1528.nasl - Type : ACT_GATHER_INFO
2018-10-03 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4309.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2018-11-27 21:22:51
  • Multiple Updates
2018-10-04 00:21:47
  • Multiple Updates
2018-10-01 21:19:34
  • First insertion