{"id":"CVE-2016-1902","details":"The nextBytes function in the SecureRandom class in Symfony before 2.3.37, 2.6.x before 2.6.13, and 2.7.x before 2.7.9 does not properly generate random numbers when used with PHP 5.x without the paragonie/random_compat library and the openssl_random_pseudo_bytes function fails, which makes it easier for attackers to defeat cryptographic protection mechanisms via unspecified vectors.","aliases":["GHSA-jjx5-fq5g-8xpc"],"modified":"2026-07-08T05:49:07.526618487Z","published":"2016-06-01T22:59:01.393Z","database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.0"},{"last_affected":"8.0"}],"vendor_product":"debian:debian_linux","source":"CPE_STRING"}]},"references":[{"type":"ADVISORY","url":"http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails"},{"type":"ADVISORY","url":"http://www.debian.org/security/2016/dsa-3588"},{"type":"FIX","url":"https://github.com/symfony/symfony/pull/17359"},{"type":"ARTICLE","url":"https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/symfony/security-http","events":[{"introduced":"1da0b42145752d02371c054b456bcd6ccf9573d5"},{"last_affected":"0da4693f29ece3fd71a27785af71afc23d5d86fa"}],"database_specific":{"extracted_events":[{"introduced":"2.6.0"},{"last_affected":"2.6.0"},{"introduced":"2.6.1"},{"last_affected":"2.6.1"},{"introduced":"2.6.2"},{"last_affected":"2.6.2"},{"introduced":"2.6.3"},{"last_affected":"2.6.3"},{"introduced":"2.6.4"},{"last_affected":"2.6.4"},{"introduced":"2.6.5"},{"last_affected":"2.6.5"},{"introduced":"2.6.6"},{"last_affected":"2.6.6"},{"introduced":"2.6.7"},{"last_affected":"2.6.7"},{"introduced":"2.6.8"},{"last_affected":"2.6.8"},{"introduced":"2.6.9"},{"last_affected":"2.6.9"},{"introduced":"2.6.10"},{"last_affected":"2.6.10"},{"introduced":"2.6.11"},{"last_affected":"2.6.11"},{"introduced":"2.6.12"},{"last_affected":"2.6.12"},{"introduced":"2.7.0"},{"last_affected":"2.7.0"},{"introduced":"2.7.1"},{"last_affected":"2.7.1"},{"introduced":"2.7.2"},{"last_affected":"2.7.2"},{"introduced":"2.7.3"},{"last_affected":"2.7.3"},{"introduced":"2.7.4"},{"last_affected":"2.7.4"},{"introduced":"2.7.5"},{"last_affected":"2.7.5"},{"introduced":"2.7.6"},{"last_affected":"2.7.6"},{"introduced":"2.7.7"},{"last_affected":"2.7.7"},{"introduced":"2.7.8"},{"last_affected":"2.7.8"}],"cpe":["cpe:2.3:a:sensiolabs:symfony:2.6.0:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.1:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.2:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.3:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.4:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.5:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.6:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.7:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.8:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.9:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.10:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.11:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.6.12:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.7.0:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.7.1:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.7.2:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.7.3:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.7.4:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.7.5:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.7.6:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.7.7:*:*:*:*:*:*:*","cpe:2.3:a:sensiolabs:symfony:2.7.8:*:*:*:*:*:*:*"],"source":"CPE_STRING"}}],"versions":["2.6.0","2.6.1","2.6.10","2.6.11","2.6.12","2.6.2","2.6.3","2.6.4","2.6.5","2.6.6","2.6.7","2.6.8","2.7.0","2.7.1","2.7.2","2.7.3","2.7.4","2.7.5","2.7.6","2.7.7","2.7.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-1902.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/symfony/symfony","events":[{"introduced":"0"},{"last_affected":"b72ca4bdc77a7fd00478fd6822f11c116e20a0b2"},{"introduced":"645bb3248db50d653d18929eb0c92b131b4f35ad"},{"last_affected":"ad264021e44a5aaa132f16aef69f92e56795683e"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"2.3.36"},{"introduced":"2.6.0"},{"last_affected":"2.6.0"},{"introduced":"2.6.1"},{"last_affected":"2.6.1"},{"introduced":"2.6.2"},{"last_affected":"2.6.2"},{"introduced":"2.6.3"},{"last_affected":"2.6.3"},{"introduced":"2.6.4"},{"last_affected":"2.6.4"},{"introduced":"2.6.5"},{"last_affected":"2.6.5"},{"introduced":"2.6.6"},{"last_affected":"2.6.6"},{"introduced":"2.6.7"},{"last_affected":"2.6.7"},{"introduced":"2.6.8"},{"last_affected":"2.6.8"},{"introduced":"2.6.9"},{"last_affected":"2.6.9"},{"introduced":"2.6.10"},{"last_affected":"2.6.10"},{"introduced":"2.6.11"},{"last_affected":"2.6.11"},{"introduced":"2.6.12"},{"last_affected":"2.6.12"},{"introduced":"2.7.0"},{"last_affected":"2.7.0"},{"introduced":"2.7.1"},{"last_affected":"2.7.1"},{"introduced":"2.7.2"},{"last_affected":"2.7.2"},{"introduced":"2.7.3"},{"last_affected":"2.7.3"},{"introduced":"2.7.4"},{"last_affected":"2.7.4"},{"introduced":"2.7.5"},{"last_affected":"2.7.5"},{"introduced":"2.7.6"},{"last_affected":"2.7.6"},{"introduced":"2.7.7"},{"last_affected":"2.7.7"},{"introduced":"2.7.8"},{"last_affected":"2.7.8"}],"cpe":["cpe:2.3:a:sen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