What is the vulnerability ID for this strongSwan vulnerability?

The vulnerability ID for this strongSwan vulnerability is USN-3774-1.

What is the description of the vulnerability?

The vulnerability involves incorrect handling of signature validation in the gmp plugin of strongSwan.

How does this vulnerability affect the affected software?

This vulnerability can cause strongSwan to crash, resulting in a denial of service, or possibly allow remote attackers to execute arbitrary code.

Which versions of Ubuntu and strongSwan are affected by this vulnerability?

Versions 18.04, 16.04, and 14.04 of Ubuntu, along with their corresponding versions of libstrongswan and strongswan, are affected by this vulnerability.

What is the remedy for this vulnerability?

The recommended remedy is to update libstrongswan and strongswan to version 5.6.2-1ubuntu2.3 for Ubuntu 18.04, 5.3.5-1ubuntu3.8 for Ubuntu 16.04, and 5.1.2-0ubuntu2.11 for Ubuntu 14.04.

Vulnerability/
USN-3774-1

1/10/2018

USN-3774-1: strongSwan vulnerability

First published: Mon Oct 01 2018(Updated: )

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.

Affected Software	Affected Version	How to fix
All of
ubuntu/libstrongswan	<5.6.2-1ubuntu2.3	5.6.2-1ubuntu2.3
Ubuntu Ubuntu	=18.04
All of
ubuntu/strongswan	<5.6.2-1ubuntu2.3	5.6.2-1ubuntu2.3
Ubuntu Ubuntu	=18.04
All of
ubuntu/libstrongswan	<5.3.5-1ubuntu3.8	5.3.5-1ubuntu3.8
Ubuntu Ubuntu	=16.04
All of
ubuntu/strongswan	<5.3.5-1ubuntu3.8	5.3.5-1ubuntu3.8
Ubuntu Ubuntu	=16.04
All of
ubuntu/libstrongswan	<5.1.2-0ubuntu2.11	5.1.2-0ubuntu2.11
Ubuntu Ubuntu	=14.04
All of
ubuntu/strongswan	<5.1.2-0ubuntu2.11	5.1.2-0ubuntu2.11
Ubuntu Ubuntu	=14.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2018-17540

Frequently Asked Questions

What is the vulnerability ID for this strongSwan vulnerability?
The vulnerability ID for this strongSwan vulnerability is USN-3774-1.
What is the description of the vulnerability?
The vulnerability involves incorrect handling of signature validation in the gmp plugin of strongSwan.
How does this vulnerability affect the affected software?
This vulnerability can cause strongSwan to crash, resulting in a denial of service, or possibly allow remote attackers to execute arbitrary code.
Which versions of Ubuntu and strongSwan are affected by this vulnerability?
Versions 18.04, 16.04, and 14.04 of Ubuntu, along with their corresponding versions of libstrongswan and strongswan, are affected by this vulnerability.
What is the remedy for this vulnerability?
The recommended remedy is to update libstrongswan and strongswan to version 5.6.2-1ubuntu2.3 for Ubuntu 18.04, 5.3.5-1ubuntu3.8 for Ubuntu 16.04, and 5.1.2-0ubuntu2.11 for Ubuntu 14.04.

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