Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 41.8%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
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
- https://www.debian.org/security/2017/dsa-3966
- 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
- https://www.debian.org/security/2017/dsa-3966
Products affected by CVE-2016-7798
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cpe:2.3:a:ruby-lang:openssl:-
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cpe:2.3:a:ruby-lang:openssl:0.1.0
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cpe:2.3:a:ruby-lang:openssl:0.2.0
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cpe:2.3:a:ruby-lang:openssl:1.0.0
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cpe:2.3:o:debian:debian_linux:8.0
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cpe:2.3:o:debian:debian_linux:9.0