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.

Project Subscriptions

Vendors Products
Opensuse Subscribe
Opensuse Subscribe
Openvpn Subscribe
Openvpn Subscribe
Openvpn Access Server Subscribe
Advisories
Source ID Title
EUVD EUVD EUVD-2013-2042 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.
Ubuntu USN Ubuntu USN USN-2368-1 OpenVPN vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T15:20:37.491Z

Reserved: 2013-02-19T00:00:00.000Z

Link: CVE-2013-2061

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2013-11-18T02:55:07.530

Modified: 2025-04-11T00:51:21.963

Link: CVE-2013-2061

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses