CVE-2016-7798: Debian Linux

High severity, CVSS 7.5. EPSS: 3.2% chance of exploitation in the next 30 days.

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 products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Ruby-Lang OpenSSL: before 2.0.0 (fixed in 2.0.0)

Published 2017-01-30. Last modified 2026-06-17.