USN-2368-1: OpenVPN vulnerability
3
(AV:N/AC:H/Au:N/C:P/I:N/A:N)
11/17/2013
07/25/2018
10/06/2014
07/09/2020
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.
Solution(s)
- ubuntu-upgrade-openvpn
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