CVE-2016-7798 - Vulncode-DB

CVE-2016-7798 (NVD)

2017-01-30

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.

Products	Debian_linux, Openssl
Type	Inadequate Encryption Strength (CWE-326)
First patch	https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062
Relevant file/s	• ./ext/openssl/ossl_cipher.c (modified, +13, -12) • ./test/test_cipher.rb (modified, +23, -6)
Links	• http://www.openwall.com/lists/oss-security/2016/09/19/9 • http://www.securityfocus.com/bid/93031 • http://www.openwall.com/lists/oss-security/2016/10/01/2 • https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html • https://www.debian.org/security/2017/dsa-3966 More/Less (2) • https://github.com/ruby/openssl/issues/49 • http://www.openwall.com/lists/oss-security/2016/09/30/6

openssl - Tree: 8108e0a6db

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