CVE-2019-1549medium
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
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).
References
https://seclists.org/bugtraq/2019/Oct/1
https://security.netapp.com/advisory/ntap-20190919-0002/
https://support.f5.com/csp/article/K44070243
https://support.f5.com/csp/article/K44070243?utm_source=f5support&utm_medium=RSS
https://usn.ubuntu.com/4376-1/
https://www.debian.org/security/2019/dsa-4539
https://www.openssl.org/news/secadv/20190910.txt
https://www.oracle.com/security-alerts/cpuapr2020.html
https://www.oracle.com/security-alerts/cpujan2020.html
https://www.oracle.com/security-alerts/cpujul2020.html
https://www.oracle.com/security-alerts/cpuoct2020.html
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Details
Source: MITRE
Published: 2019-09-10
Updated: 2020-10-20
Type: CWE-330
Risk Information
CVSS v2
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
CVSS v3
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Impact Score: 1.4
Exploitability Score: 3.9
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions from 1.1.1 to 1.1.1c (inclusive)
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 145975 | CentOS 8 : openssl (CESA-2020:1840) | Nessus | CentOS Local Security Checks | medium |
| 143010 | RHEL 8 : openssl (RHSA-2020:1840) | Nessus | Red Hat Local Security Checks | medium |
| 138622 | Amazon Linux 2 : openssl11 (ALAS-2020-1456) | Nessus | Amazon Linux Local Security Checks | medium |
| 136967 | Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : OpenSSL vulnerabilities (USN-4376-1) | Nessus | Ubuntu Local Security Checks | medium |
| 135235 | RHEL 6 / 7 : Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP2 (RHSA-2020:1337) | Nessus | Red Hat Local Security Checks | critical |
| 132926 | SUSE SLED12 / SLES12 Security Update : openssl-1_1 (SUSE-SU-2020:0099-1) | Nessus | SuSE Local Security Checks | medium |
| 132817 | EulerOS Virtualization for ARM 64 3.0.5.0 : openssl (EulerOS-SA-2020-1063) | Nessus | Huawei Local Security Checks | medium |
| 130806 | EulerOS 2.0 SP8 : openssl (EulerOS-SA-2019-2097) | Nessus | Huawei Local Security Checks | medium |
| 130110 | Photon OS 3.0: Nxtgn PHSA-2019-3.0-0033 | Nessus | PhotonOS Local Security Checks | medium |
| 129635 | Fedora 31 : 1:openssl (2019-9ab7ee6309) | Nessus | Fedora Local Security Checks | medium |
| 129513 | Fedora 29 : 1:openssl (2019-d51641f152) | Nessus | Fedora Local Security Checks | medium |
| 129506 | Debian DSA-4539-1 : openssl - security update | Nessus | Debian Local Security Checks | medium |
| 129327 | Fedora 30 : 1:openssl (2019-d15aac6c4e) | Nessus | Fedora Local Security Checks | medium |
| 128746 | FreeBSD : OpenSSL -- Multiple vulnerabilities (9e0c6f7a-d46d-11e9-a1c7-b499baebfeaf) | Nessus | FreeBSD Local Security Checks | medium |
| 128116 | OpenSSL 1.1.1 < 1.1.1d Multiple Vulnerabilities | Nessus | Web Servers | medium |