CVE-2016-7798

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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/ruby/openssl/issues/49	Exploit Third Party Advisory
https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062	Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/01/2	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/30/6	Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/19/9	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/93031	Third Party Advisory VDB Entry
https://www.debian.org/security/2017/dsa-3966	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:ruby-lang:openssl:*:*:*:*:*:ruby:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Information

Published : 2017-01-30 14:59

Updated : 2020-11-05 06:56

NVD link : CVE-2016-7798

Mitre link : CVE-2016-7798

JSON object : View

CWE

CWE-326

Inadequate Encryption Strength

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Products Affected

debian

debian_linux

ruby-lang

openssl

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