Several security issues were fixed in OpenVPN.
It was discovered that OpenVPN improperly triggered an assert when receiving an oversized control packet in some situations. A remote attacker could use this to cause a denial of service (server or client crash). (CVE-2017-7478)
11 May 2017
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in OpenVPN.
It was discovered that OpenVPN improperly triggered an assert when receiving an oversized control packet in some situations. A remote attacker could use this to cause a denial of service (server or client crash). (CVE-2017-7478)
It was discovered that OpenVPN improperly triggered an assert when packet ids rolled over. An authenticated remote attacker could use this to cause a denial of service (application crash). (CVE-2017-7479)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon