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TI-2019-13837 Aliases CVE-2019-19204GHSA-563p-6h7j-cxg6

An issue was discovered in Oniguruma 6.x before 6.9.4_rc2.

Priority MEDIUM 43CWE-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: 10 fixed, 6 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

An issue was discovered in Oniguruma 6.x before 6.9.4_rc2. In the function fetch_interval_quantifier (formerly known as fetch_range_quantifier) in regparse.c, PFETCH is called without checking PEND. This leads to a heap-based buffer over-read.

Why it matters now

EPSS 0.06889 94th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial Red Hat: 5 advisoriesRed Hat: 10 fixed, 6 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:*:*:*:*:*:*:*:*6.0.0 to before 6.9.4VulnerableOniguruma Project
cpe:2.3:a:oniguruma_project:oniguruma:6.9.4:rc1:*:*:*:*:*:*6.9.4 rc1VulnerableOniguruma Project
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*30VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*31VulnerableFedoraproject
  • cpe:2.3:a:oniguruma_project:oniguruma:*:*:*:*:*:*:*:* Versions 6.0.0 to before 6.9.4 Vulnerable ·Oniguruma Project
  • cpe:2.3:a:oniguruma_project:oniguruma:6.9.4:rc1:*:*:*:*:*:* Versions 6.9.4 rc1 Vulnerable ·Oniguruma Project
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject

Remediation

Red Hat 5 advisories

  • RHSA-2024:0889 Released 2024-02-20 · Red Hat rating Moderate
    oniguruma security update
    • Red Hat CodeReady Linux Builder (v. 8) oniguruma-devel-6.8.2-2.1.el8_9
    • Red Hat Enterprise Linux AppStream (v. 8) oniguruma-6.8.2-2.1.el8_9
  • RHSA-2024:0572 Released 2024-01-30 · Red Hat rating Moderate
    oniguruma security update
    • Red Hat CodeReady Linux Builder EUS (v.8.8) oniguruma-devel-6.8.2-2.1.el8_8
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) oniguruma-6.8.2-2.1.el8_8
  • RHSA-2024:0409 Released 2024-01-25 · Red Hat rating Moderate
    oniguruma security update
    • Red Hat CodeReady Linux Builder EUS (v.8.6) oniguruma-devel-6.8.2-2.1.el8_6
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) oniguruma-6.8.2-2.1.el8_6
Show 2 more Red Hat 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 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Red Hat OpenShift Container Platform 4AffectedNo fix planned: Will not fix
Red Hat Software CollectionsAffectedNo fix planned: Will not fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2024:0889
Red Hat CodeReady Linux Builder EUS (v.8.6)Fixed RHSA-2024:0409
Red Hat CodeReady Linux Builder EUS (v.8.8)Fixed RHSA-2024:0572
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:3662, RHSA-2024:0889
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2024:0409
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2024:0572
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
Not affected: 3 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Software Collections

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-19204
  2. 2026-10-03 Alias added: GHSA-563p-6h7j-cxg6

References

Exploit 2

Advisory 5

Other 1

Sources

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