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Fencer Vulns
medium 5.3

CVE-2019-1549 json

Fork Protection

published 2019-09-10 7 y ago modified 2026-07-25 3 mo ago also EUVD-2019-10106 , GHSA-xmjp-8ccm-cf6h , JLSEC-2026-215

cvss
5.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.2%
EPSS 6.2% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

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).

Patch / fix

  • julia OpenSSL_jll 1.1.1+2
  • openssl Debian 14, Debian 13, Debian 12 1.1.1d-1

debian advisories DEBIAN-CVE-2019-1549

  • openssl Ubuntu 18.04 LTS 1.1.1-1ubuntu2.1~18.04.6

ubuntu advisories UBUNTU-CVE-2019-1549

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • openssl RHEL 8 1:1.1.1c-15.el8
  • openssl-libs RHEL 8 1:1.1.1c-15.el8
  • openssl-perl RHEL 8 1:1.1.1c-15.el8
  • jbcs-httpd24-apr jboss core services 1 1.6.3-86.jbcs.el6
  • jbcs-httpd24-apr jboss core services 1 1.6.3-86.jbcs.el7
  • jbcs-httpd24-httpd jboss core services 1 2.4.37-52.jbcs.el6
  • jbcs-httpd24-httpd jboss core services 1 2.4.37-52.jbcs.el7
  • jbcs-httpd24-brotli jboss core services 1 1.0.6-21.jbcs.el6

red hat advisories RHSA-2020:1840RHSA-2020:1337

  • openssl-1_1 SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +4 more 1.1.1d-2.20.1

suse advisories SUSE-SU-2020:0099-1

  • openssl-1_1 openSUSE Tumbleweed 1.1.1l-1.2

opensuse advisories openSUSE-SU-2024:11127-1

  • openssl Alpine 3.10, Alpine 3.9 1.1.1d-r0
  • openssl Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 1.1.1d-r1
  • openssl3 Alpine 3.16, Alpine 3.15 1.1.1d-r1
  • openssl1.1-compat Alpine 3.18, Alpine 3.17 1.1.1d-r1

alpine advisories ALPINE-CVE-2019-1549

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-1549 updated cvss 4.8

openssl: information disclosure in fork()

  • Red Hat JBoss Enterprise Application Platform 5 openssl Red Hat JBoss Enterprise Application Platform 6 openssl Red Hat JBoss Enterprise Web Server 2 openssl Red Hat JBoss Web Server 3 openssl
    affected: no fix planned “Out of support scope”
  • Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP2
    fixed: vendor fix RHSA-2020:1336
  • Red Hat Enterprise Linux BaseOS (v. 8) openssl 1.1.1c-15.el8, openssl-libs 1.1.1c-15.el8, openssl-perl 1.1.1c-15.el8
    fixed: vendor fix RHSA-2020:1840
  • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-apr 1.6.3-86.jbcs.el6, jbcs-httpd24-brotli 1.0.6-21.jbcs.el6, jbcs-httpd24-httpd 2.4.37-52.jbcs.el6, jbcs-httpd24-mod_ssl 2.4.37-52.jbcs.el6, jbcs-httpd24-openssl 1.1.1c-16.jbcs.el6, jbcs-httpd24-mod_ldap 2.4.37-52.jbcs.el6, +9 more Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-apr 1.6.3-86.jbcs.el7, jbcs-httpd24-brotli 1.0.6-21.jbcs.el7, jbcs-httpd24-httpd 2.4.37-52.jbcs.el7, jbcs-httpd24-mod_ssl 2.4.37-52.jbcs.el7, jbcs-httpd24-openssl 1.1.1c-16.jbcs.el7, jbcs-httpd24-mod_ldap 2.4.37-52.jbcs.el7, +9 more
    fixed: vendor fix RHSA-2020:1337
  • Red Hat Enterprise Linux 5 openssl Red Hat Enterprise Linux 6 openssl, openssl-perl Red Hat Enterprise Linux 7 openssl, openssl-libs, openssl-perl Red Hat Enterprise Linux 8 mingw-openssl, mingw32-openssl, mingw64-openssl Red Hat JBoss Web Server 5 openssl
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-21-336-06 updated cvss 5.3

Hitachi Energy APM Edge

  • Hitachi Energy APM Edge 3.0, 2.0, 1.0
    affected: vendor fix, mitigation “Physically protect process control systems from direct access by unauthorized personnel.” search.abb.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

6.18% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
julia OpenSSL_jll
<1.1.1+2
1.1.1+2

Affected products

  • OpenSSL OpenSSL

Classification

Weakness
  • CWE-330 Use of Insufficiently Random Values
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.