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TI-2019-13870 Aliases CVE-2019-19246GHSA-h9r8-w9m7-2qf5

Oniguruma through 6.9.3, as used in PHP 7.3.x and other products, has a heap-based buffer…

Priority LOW 38CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 5 fixed, 5 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

Oniguruma through 6.9.3, as used in PHP 7.3.x and other products, has a heap-based buffer over-read in str_lower_case_match in regexec.c.

Why it matters now

EPSS 0.02966 87th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 5 fixed, 5 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:oniguruma_project:oniguruma:*:*:*:*:*:*:*:*up to 6.9.3VulnerableOniguruma Project
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*7.3.0 to before 7.3.10VulnerablePHP
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*31VulnerableFedoraproject
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*14.04VulnerableCanonical
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:a:oniguruma_project:oniguruma:*:*:*:*:*:*:*:* Versions up to 6.9.3 Vulnerable ·Oniguruma Project
  • cpe:2.3:a:php:php:*:*:*:*:*:*:*:* Versions 7.3.0 to before 7.3.10 Vulnerable ·PHP
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

Red Hat 2 advisories

  • RHSA-2020:5275 Released 2020-12-01 · Red Hat rating Moderate
    rh-php73-php security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-php73-php-7.3.20-1.el7, rh-php73-php-bcmath-7.3.20-1.el7, rh-php73-php-cli-7.3.20-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-php73-php-7.3.20-1.el7, rh-php73-php-bcmath-7.3.20-1.el7, rh-php73-php-cli-7.3.20-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-php73-php-7.3.20-1.el7, rh-php73-php-bcmath-7.3.20-1.el7, rh-php73-php-cli-7.3.20-1.el7 +26
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-php73-php-7.3.20-1.el7, rh-php73-php-bcmath-7.3.20-1.el7, rh-php73-php-cli-7.3.20-1.el7 +26
  • RHSA-2020:3662 Released 2020-09-08 · Red Hat rating Moderate
    php:7.3 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) apcu-panel-5.1.17-1.module+el8.1.0+3189+a1bff096.noarch::php:7.3, libzip-1.5.2-1.module+el8.1.0+3189+a1bff096.aarch64::php:7.3, libzip-1.5.2-1.module+el8.1.0+3189+a1bff096.ppc64le::php:7.3 +47

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat OpenShift Container Platform 4AffectedNo fix planned: Will not fix
Red Hat Software CollectionsAffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:3662
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:5275
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2020:5275
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2020:5275
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:5275

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-19246
  2. 2026-10-03 Alias added: GHSA-h9r8-w9m7-2qf5

References

Patch 1

Advisory 4

Sources

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