1. Ubuntu Security Notices
  2. USN-3774-1

USN-3774-1: strongSwan vulnerability

Publication date

1 October 2018

Overview

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

Releases

Packages

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.

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic libstrongswan –  5.6.2-1ubuntu2.3
strongswan –  5.6.2-1ubuntu2.3
16.04 xenial libstrongswan –  5.3.5-1ubuntu3.8
strongswan –  5.3.5-1ubuntu3.8
14.04 trusty libstrongswan –  5.1.2-0ubuntu2.11
strongswan –  5.1.2-0ubuntu2.11

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›