[USN-3774-1] strongSwan vulnerability

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[USN-3774-1] strongSwan vulnerability

Marc Deslauriers-3
Ubuntu Security Notice USN-3774-1
October 01, 2018

strongswan vulnerability

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

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


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

Software Description:
- strongswan: IPsec VPN solution


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.


Package Information:

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