USN-3397-1: strongSwan vulnerability

Releases

• Ubuntu 17.04
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• strongswan - IPsec VPN solution

Details

It was discovered that strongSwan incorrectly handled verifying
specific RSA signatures. A remote attacker could use this issue
to cause strongSwan to crash, resulting in a denial of service.

Update instructions

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

Ubuntu 17.04

• libstrongswan - 5.5.1-1ubuntu3.2
• strongswan - 5.5.1-1ubuntu3.2

Ubuntu 16.04

• libstrongswan - 5.3.5-1ubuntu3.4
• strongswan - 5.3.5-1ubuntu3.4

Ubuntu 14.04

• libstrongswan - 5.1.2-0ubuntu2.7
• strongswan - 5.1.2-0ubuntu2.7

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

References

• CVE-2017-11185