CVE-2016-6329

OpenVPN, when using a 64-bit block cipher, makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as demonstrated by an HTTP-over-OpenVPN session using Blowfish in CBC mode, aka a "Sweet32" attack.

CVSS v3.0 5.9 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.9^/10

CVSS v3.0 : MEDIUM

Vector : AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:N/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://sweet32.info/	Technical Description Third Party Advisory
https://security.gentoo.org/glsa/201611-02	Third Party Advisory
https://community.openvpn.net/openvpn/wiki/SWEET32	Vendor Advisory
http://www-01.ibm.com/support/docview.wss?uid=swg21995039	Third Party Advisory
http://www-01.ibm.com/support/docview.wss?uid=swg21991482	Third Party Advisory
http://www-01.ibm.com/support/docview.wss?uid=nas8N1021697	Permissions Required Third Party Advisory
http://www.securitytracker.com/id/1036695	Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/92631	Third Party Advisory VDB Entry
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05369403	Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-556833.pdf

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Configurations

Configuration 1 (hide)

cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*

Information

Published : 2017-01-31 14:59

Updated : 2019-07-09 06:15

NVD link : CVE-2016-6329

Mitre link : CVE-2016-6329

JSON object : View

CWE

CWE-310

Cryptographic Issues

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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Products Affected

openvpn

openvpn

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