Vulnerability Details : CVE-2019-1549

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).
Published 2019-09-10 17:15:12
Updated 2020-10-20 22:15:34
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Exploit prediction scoring system (EPSS) score for CVE-2019-1549

Probability of exploitation activity in the next 30 days: 0.61%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 76 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2019-1549

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source
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CWE ids for CVE-2019-1549

References for CVE-2019-1549

Products affected by CVE-2019-1549

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