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TI-2019-01187 Aliases CVE-2019-1549GHSA-xmjp-8ccm-cf6h

Fork Protection

Priority LOW 33CWE-330Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 4 fixed, 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

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).

Why it matters now

EPSS 0.06182 93rd percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 4 fixed, 4 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenSSLOpenSSLFixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c)—No fix listedCNA
  • OpenSSL VendorOpenSSL Affected Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c) Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*1.1.1 – 1.1.1cVulnerableOpenSSL
  • cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* Versions 1.1.1 – 1.1.1c Vulnerable ·OpenSSL

Remediation

Red Hat 3 advisories

  • RHSA-2020:1840 Released 2020-04-28 · Red Hat rating Moderate
    openssl security and bug fix update
    • Red Hat Enterprise Linux BaseOS (v. 8) openssl-1:1.1.1c-15.el8, openssl-devel-1:1.1.1c-15.el8, openssl-libs-1:1.1.1c-15.el8 +1
  • RHSA-2020:1337 Released 2020-04-06 · Red Hat rating Moderate
    Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP2 security update
    • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-apr-1.6.3-86.jbcs.el6, jbcs-httpd24-apr-devel-1.6.3-86.jbcs.el6, jbcs-httpd24-brotli-1.0.6-21.jbcs.el6 +17
    • Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-apr-1.6.3-86.jbcs.el7, jbcs-httpd24-apr-devel-1.6.3-86.jbcs.el7, jbcs-httpd24-brotli-1.0.6-21.jbcs.el7 +17
  • RHSA-2020:1336 Released 2020-04-06 · Red Hat rating Moderate
    Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP2 security update
    • JBoss Core Services Apache HTTP Server 2.4.37 SP2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    OpenSSL — FEDORA-2019-d15aac6c4e

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2019-01191 Padding Oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkeyPriority LOW 30
    • TI-2019-01186 ECDSA remote timing attackPriority LOW 24
    Show all 3 records → Advisory →
  • Advisory ·

    OpenSSL — FEDORA-2019-d51641f152

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2019-01191 Padding Oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkeyPriority LOW 30
    • TI-2019-01186 ECDSA remote timing attackPriority LOW 24
    Show all 3 records → Advisory →
Show 2 more groups
  • Advisory ·

    OpenSSL — USN-4376-1

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2019-01191 Padding Oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkeyPriority LOW 30
    • TI-2019-01186 ECDSA remote timing attackPriority LOW 24
    Show all 3 records → Advisory →
  • Advisory ·

    OpenSSL — DSA-4539

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2019-01191 Padding Oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkeyPriority LOW 30
    • TI-2019-01186 ECDSA remote timing attackPriority LOW 24
    Show all 3 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat JBoss Enterprise Application Platform 5AffectedNo fix planned: Out of support scope
Red Hat JBoss Enterprise Application Platform 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Enterprise Web Server 2AffectedNo fix planned: Out of support scope
Red Hat JBoss Web Server 3AffectedNo fix planned: Out of support scope
JBoss Core Services Apache HTTP Server 2.4.37 SP2Fixed RHSA-2020:1336
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2020:1840
Red Hat JBoss Core Services on RHEL 6 ServerFixed RHSA-2020:1337
Red Hat JBoss Core Services on RHEL 7 ServerFixed RHSA-2020:1337
Not affected: 5 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat JBoss Web Server 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1549
  2. 2026-10-03 Alias added: GHSA-xmjp-8ccm-cf6h

References

Advisory 5

Other 10

  • TI-2022-01915 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
  • TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
  • TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
  • TI-2022-01176 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2025-14107 Stack buffer overflow in CMS (Auth)EnvelopedData parsing CVSS 3.1HIGH 8.8
See all 312 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences