{"id":"CVE-2016-3995","details":"The timing attack protection in Rijndael::Enc::ProcessAndXorBlock and Rijndael::Dec::ProcessAndXorBlock in Crypto++ (aka cryptopp) before 5.6.4 may be optimized out by the compiler, which allows attackers to conduct timing attacks.","modified":"2026-04-16T06:23:07.238748404Z","published":"2017-02-13T18:59:00.517Z","references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/85975"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2016/04/11/2"},{"type":"FIX","url":"https://github.com/weidai11/cryptopp/issues/146"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/weidai11/cryptopp","events":[{"introduced":"0"},{"last_affected":"298988a5b9687f64de733ce01319e90e94b0b688"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"5.6.3"}]}}],"versions":["CRYPTOPP_5_0","CRYPTOPP_5_1","CRYPTOPP_5_2","CRYPTOPP_5_2_1","CRYPTOPP_5_2_3","CRYPTOPP_5_3_0","CRYPTOPP_5_4","CRYPTOPP_5_5","CRYPTOPP_5_5_1","CRYPTOPP_5_5_2","CRYPTOPP_5_6_0","CRYPTOPP_5_6_1","CRYPTOPP_5_6_2","CRYPTOPP_5_6_3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-3995.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}