CVE-2016-7798high
Description
The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.
References
http://www.openwall.com/lists/oss-security/2016/09/19/9
http://www.openwall.com/lists/oss-security/2016/09/30/6
http://www.openwall.com/lists/oss-security/2016/10/01/2
http://www.securityfocus.com/bid/93031
https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062
https://github.com/ruby/openssl/issues/49
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
Details
Source: MITRE
Published: 2017-01-30
Updated: 2020-11-05
Type: CWE-326
Risk Information
CVSS v2
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
CVSS v3
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH