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CVE-2019-1549 Details

Description

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).

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/	CVE
https://seclists.org/bugtraq/2019/Oct/1	CVE
https://security.netapp.com/advisory/ntap-20190919-0002/	CVE
https://support.f5.com/csp/article/K44070243	CVE
https://support.f5.com/csp/article/K44070243?utm_source=f5support&amp%3Butm_medium=RSS	CVE
https://usn.ubuntu.com/4376-1/	CVE
https://www.debian.org/security/2019/dsa-4539	CVE
https://www.openssl.org/news/secadv/20190910.txt	CVE	Vendor Advisory
https://www.oracle.com/security-alerts/cpuapr2020.html	CVE
https://www.oracle.com/security-alerts/cpujan2020.html	CVE
https://www.oracle.com/security-alerts/cpujul2020.html	CVE
https://www.oracle.com/security-alerts/cpuoct2020.html	CVE
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html	CVE
https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/	[email protected]
https://seclists.org/bugtraq/2019/Oct/1	[email protected]
https://security.netapp.com/advisory/ntap-20190919-0002/	[email protected]
https://support.f5.com/csp/article/K44070243	[email protected]
https://support.f5.com/csp/article/K44070243?utm_source=f5support&amp%3Butm_medium=RSS	[email protected]
https://usn.ubuntu.com/4376-1/	[email protected]
https://www.debian.org/security/2019/dsa-4539	[email protected]
https://www.openssl.org/news/secadv/20190910.txt	[email protected]	Vendor Advisory
https://www.oracle.com/security-alerts/cpuapr2020.html	[email protected]
https://www.oracle.com/security-alerts/cpujan2020.html	[email protected]
https://www.oracle.com/security-alerts/cpujul2020.html	[email protected]
https://www.oracle.com/security-alerts/cpuoct2020.html	[email protected]
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html	[email protected]

see all 30 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-330	Use of Insufficiently Random Values	[email protected]

Affected Products

Product	Versions
openssl openssl	>= 1.1.1, <= 1.1.1c
CPE cpe:2.3:a:openssl:openssl:::::::: Remediation No remediation found in references.

Change History

18 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Oct 20, 2020	CVE Modified	[email protected]
Jul 15, 2020	CVE Modified	[email protected]
Jun 3, 2020	CVE Modified	[email protected]
Apr 15, 2020	CVE Modified	[email protected]
Jan 15, 2020	CVE Modified	[email protected]
Oct 16, 2019	CVE Modified	[email protected]
Oct 9, 2019	CVE Modified	[email protected]
Oct 2, 2019	CVE Modified	[email protected]
Oct 2, 2019	CVE Modified	[email protected]
Oct 2, 2019	CVE Modified	[email protected]
Sep 25, 2019	CVE Modified	[email protected]
Sep 24, 2019	CVE Modified	[email protected]
Sep 19, 2019	CVE Modified	[email protected]
Sep 12, 2019	Initial Analysis	[email protected]