National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2013-2061 Detail

Current Description

The openvpn_decrypt function in crypto.c in OpenVPN 2.3.0 and earlier, when running in UDP mode, allows remote attackers to obtain sensitive information via a timing attack involving an HMAC comparison function that does not run in constant time and a padding oracle attack on the CBC mode cipher.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 2.6 LOW
Vector: (AV:N/AC:H/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 4.9


Access Vector (AV): Network
Access Complexity (AC): High
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105568.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105609.html
http://lists.opensuse.org/opensuse-updates/2013-11/msg00012.html Vendor Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00016.html
http://www.mandriva.com/security/advisories?name=MDVSA-2013:167
http://www.openwall.com/lists/oss-security/2013/05/06/6
https://bugs.gentoo.org/show_bug.cgi?id=468756
https://bugzilla.redhat.com/show_bug.cgi?id=960192
https://community.openvpn.net/openvpn/wiki/SecurityAnnouncement-f375aa67cc
https://github.com/OpenVPN/openvpn/commit/11d21349a4e7e38a025849479b36ace7c2eec2ee Exploit Patch

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:openvpn:openvpn:1.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:1.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:1.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:1.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:1.3.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:1.4.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:1.4.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:1.4.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:1.4.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:1.5.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:1.6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:2.0.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:2.1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:2.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
2.3.0

Configuration 2 ( hide )
 cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2013-2061
NVD Published Date:
11/17/2013
NVD Last Modified:
10/30/2018