=========================================================================Ubuntu Security Notice USN-3339-2
August 07, 2017
openvpn vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Summary:
Several security issues were fixed in OpenVPN.
Software Description:
- openvpn: virtual private network software
Details:
USN-3339-1 fixed several issues in OpenVPN. This update
provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Guido Vranken discovered that OpenVPN incorrectly handled an HTTP
proxy with NTLM authentication. A remote attacker could use this issue
to cause OpenVPN clients to crash, resulting in a denial of service,
or possibly expose sensitive memory contents. (CVE-2017-7520)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 ESM:
openvpn 2.2.1-8ubuntu1.5
In general, a standard system update will make all the necessary
changes.
References:
https://ubuntu.com/security/notices/USN-3339-2
https://ubuntu.com/security/notices/USN-3339-1
CVE-2017-7520
