Information Exposure Affecting openvpn package, versions <2.3.1-1


Severity

Recommended
0.0
low
0
10

Based on Debian security rating.

Threat Intelligence

EPSS
1.45% (81st percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-OPENVPN-345181
  • published18 Nov 2013
  • disclosed18 Nov 2013

Introduced: 18 Nov 2013

CVE-2013-2061  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Debian:unstable openvpn to version 2.3.1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openvpn package and not the openvpn package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1