A NULL Pointer Dereference in match_at() in regexec.c in Oniguruma 6.9.2 allows attackers…
Priority LOW 33CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.
Summary
A NULL Pointer Dereference in match_at() in regexec.c in Oniguruma 6.9.2 allows attackers to potentially cause denial of service by providing a crafted regular expression. Oniguruma issues often affect Ruby, as well as common optional libraries for PHP and Rust.
Why it matters now
EPSS 0.02129 82nd percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:oniguruma_project:oniguruma:6.9.2:-:*:*:*:*:*:* | 6.9.2 | Vulnerable | Oniguruma Project |
| cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* | 29 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | 30 | Vulnerable | Fedoraproject |
- cpe:2.3:a:oniguruma_project:oniguruma:6.9.2:-:*:*:*:*:*:* Versions 6.9.2 Vulnerable ·Oniguruma Project
- cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* Versions 29 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
Remediation
Red Hat 2 advisories
- RHSA-2020:4827 Released 2020-11-04 · Red Hat rating Moderateoniguruma security update
- Red Hat CodeReady Linux Builder (v. 8) oniguruma-devel-6.8.2-2.el8
- Red Hat Enterprise Linux AppStream (v. 8) oniguruma-6.8.2-2.el8
- RHSA-2020:3662 Released 2020-09-08 · Red Hat rating Moderatephp: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 →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2020:4827 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2020:3662, RHSA-2020:4827 |
Not affected: 6 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat OpenShift Container Platform 4
- Red Hat Software Collections
Timeline
- 2026-10-02 Threatist record created from CVE-2019-13225
- 2026-10-03 Alias added: GHSA-cc6v-h3w4-jf38
References
Sources
- CVE-2019-13225 · CVE Program
- CVE-2019-13225 · NVD
- FIRST EPSS
- GHSA-cc6v-h3w4-jf38 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-13225 · Red Hat security data · CC BY 4.0
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