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Ubuntu Security Notice USN-3339-2

Ubuntu Security Notice USN-3339-2
Posted Aug 7, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3339-2 - USN-3339-1 fixed several issues in OpenVPN. This update provides the corresponding update for Ubuntu 12.04 ESM. A Guido Vranken discovered that OpenVPN incorrectly handled an HTTP A proxy with NTLM authentication. A remote attacker could use this issue A to cause OpenVPN clients to crash, resulting in a denial of service, A or possibly expose sensitive memory contents. Various other issues were also addressed.

tags | advisory, remote, web, denial of service
systems | linux, ubuntu
advisories | CVE-2017-7520
MD5 | 23d76828be8a9431e15c3e3524bca1ee

Ubuntu Security Notice USN-3339-2

Change Mirror Download
==========================================================================
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:

A Guido Vranken discovered that OpenVPN incorrectly handled an HTTP
A proxy with NTLM authentication. A remote attacker could use this issue
A to cause OpenVPN clients to crash, resulting in a denial of service,
A 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:
A openvpnA A A A A A A A A A A A A A A A A A A A A A A A A 2.2.1-8ubuntu1.5

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

References:
A https://www.ubuntu.com/usn/usn-3339-2
A https://www.ubuntu.com/usn/usn-3339-1
A CVE-2017-7520

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