{"id":"CVE-2019-1549","details":"OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).","modified":"2026-04-02T01:41:14.271396Z","published":"2019-09-10T17:15:11.813Z","related":["SUSE-SU-2020:0099-1","openSUSE-SU-2024:11127-1"],"references":[{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuapr2020.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujul2020.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/"},{"type":"WEB","url":"https://usn.ubuntu.com/4376-1/"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuoct2020.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/"},{"type":"WEB","url":"https://seclists.org/bugtraq/2019/Oct/1"},{"type":"WEB","url":"https://support.f5.com/csp/article/K44070243?utm_source=f5support&amp%3Butm_medium=RSS"},{"type":"WEB","url":"https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be"},{"type":"WEB","url":"https://support.f5.com/csp/article/K44070243"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujan2020.html"},{"type":"ADVISORY","url":"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20190919-0002/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4539"},{"type":"ADVISORY","url":"https://www.openssl.org/news/secadv/20190910.txt"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openssl/openssl","events":[{"introduced":"e04bd3433fd84e1861bf258ea37928d9845e6a86"},{"last_affected":"e04bd3433fd84e1861bf258ea37928d9845e6a86"}],"database_specific":{"versions":[{"introduced":"1.1.1"},{"last_affected":"1.1.1c"}]}}],"versions":["OpenSSL_1_1_1w"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-1549.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}