Use of Insufficiently Random Values

Affecting openssl package, versions <1.1.1d-r0

Overview

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).

References

• ADVISORY
• BUGTRAQ
• CONFIRM
• CONFIRM
• CONFIRM
• DEBIAN
• Debian Security Tracker
• FEDORA
• Fedora Security Update
• MISC
• MISC
• MISC
• MISC
• N/A
• Netapp Security Advisory
• OpenSSL Security Advisory
• UBUNTU
• Ubuntu CVE Tracker