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Ubuntu Security Notice USN-3284-1
May 11, 2017
openvpn vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 17.04
Summary:
Several security issues were fixed in OpenVPN.
Software Description:
– openvpn: virtual private network software
Details:
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)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.04:
openvpn 2.4.0-4ubuntu1.2
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-3284-1
CVE-2017-7478, CVE-2017-7479
Package Information:
https://launchpad.net/ubuntu/+source/openvpn/2.4.0-4ubuntu1.2
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