CVE-2016-7798
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.3 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
73.2%
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.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| ruby-lang:openssl | ruby-lang openssl | lt | 2.0.0 |
References
www.openwall.com/lists/oss-security/2016/09/19/9
www.openwall.com/lists/oss-security/2016/09/30/6
www.openwall.com/lists/oss-security/2016/10/01/2
www.securityfocus.com/bid/93031
github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062
github.com/ruby/openssl/issues/49
lists.debian.org/debian-lts-announce/2018/07/msg00012.html
www.debian.org/security/2017/dsa-3966
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.3 High
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
73.2%