CVE-2016-7798

NameCVE-2016-7798
DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1421-1, DSA-3966-1
NVD severitymedium
Debian Bugs842432, 842544

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ruby-attr-encrypted (PTS)stretch3.0.1-2fixed
bullseye, sid3.1.0-2fixed
ruby-encryptor (PTS)stretch3.0.0-1+deb9u1fixed
bullseye, sid, buster3.0.0-2fixed
ruby2.3 (PTS)stretch (security), stretch2.3.3-1+deb9u7fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ruby-attr-encryptedsource(unstable)3.0.1-2
ruby-encryptorsource(unstable)3.0.0-1
ruby2.1source(unstable)(unfixed)842544
ruby2.1sourcejessie2.1.5-2+deb8u4DLA-1421-1
ruby2.3source(unstable)2.3.3-1+deb9u1842432
ruby2.3sourcestretch2.3.3-1+deb9u1DSA-3966-1

Notes

https://github.com/ruby/openssl/issues/49
https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062
https://github.com/attr-encrypted/attr_encrypted/issues/203
https://github.com/attr-encrypted/encryptor/pull/22

Search for package or bug name: Reporting problems