USN-3339-1

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Source

https://ubuntu.com/security/notices/USN-3339-1

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3339-1.json

JSON Data

https://api.osv.dev/v1/vulns/USN-3339-1

Related

Published

2017-06-22T18:02:03.294469Z

Modified

2017-06-22T18:02:03.294469Z

Summary

openvpn vulnerabilities

Details

Karthikeyan Bhargavan and Gaëtan Leurent discovered that 64-bit block ciphers are vulnerable to a birthday attack. A remote attacker could possibly use this issue to recover cleartext data. Fixing this issue requires a configuration change to switch to a different cipher. This update adds a warning to the log file when a 64-bit block cipher is in use. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-6329)

It was discovered that OpenVPN incorrectly handled rollover of packet ids. An authenticated remote attacker could use this issue to cause OpenVPN to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2017-7479)

Guido Vranken discovered that OpenVPN incorrectly handled certain malformed IPv6 packets. A remote attacker could use this issue to cause OpenVPN to crash, resulting in a denial of service. (CVE-2017-7508)

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)

Guido Vranken discovered that OpenVPN incorrectly handled certain x509 extensions. A remote attacker could use this issue to cause OpenVPN to crash, resulting in a denial of service. (CVE-2017-7521)

References

Affected packages

Ubuntu:14.04:LTS / openvpn

Package

Name: openvpn
Purl: pkg:deb/ubuntu/openvpn@2.3.2-7ubuntu3.2?arch=src?distro=trusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.3.2-7ubuntu3.2

Affected versions

2.*

2.3.2-4ubuntu1

2.3.2-5ubuntu1

2.3.2-7ubuntu1

2.3.2-7ubuntu2

2.3.2-7ubuntu3

2.3.2-7ubuntu3.1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "openvpn-dbgsym": "2.3.2-7ubuntu3.2",
            "openvpn": "2.3.2-7ubuntu3.2"
        }
    ]
}

Ubuntu:16.04:LTS / openvpn

Package

Name: openvpn
Purl: pkg:deb/ubuntu/openvpn@2.3.10-1ubuntu2.1?arch=src?distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.3.10-1ubuntu2.1

Affected versions

2.*

2.3.7-1ubuntu1

2.3.7-2ubuntu1

2.3.8-1ubuntu1

2.3.10-1ubuntu1

2.3.10-1ubuntu2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "openvpn-dbgsym": "2.3.10-1ubuntu2.1",
            "openvpn": "2.3.10-1ubuntu2.1"
        }
    ]
}