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.
                
            Metrics
Affected Vendors & Products
Advisories
    | Source | ID | Title | 
|---|---|---|
|  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 | USN-2368-1 | OpenVPN vulnerability | 
Fixes
    Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
        History
                    No history.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-06T15:20:37.491Z
Reserved: 2013-02-19T00:00:00
Link: CVE-2013-2061
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Deferred
Published: 2013-11-18T02:55:07.530
Modified: 2025-04-11T00:51:21.963
Link: CVE-2013-2061
 Redhat
                        Redhat
                    No data.
 OpenCVE Enrichment
                        OpenCVE Enrichment
                    No data.