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TI-2017-06674 Aliases CVE-2017-9225GHSA-24pf-h82m-5vvv

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through…

Priority MEDIUM 48CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 1 fixed, 2 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A stack out-of-bounds write in onigenc_unicode_get_case_fold_codes_by_str() occurs during regular expression compilation. Code point 0xFFFFFFFF is not properly handled in unicode_unfold_key(). A malformed regular expression could result in 4 bytes being written off the end of a stack buffer of expand_case_fold_string() during the call to onigenc_unicode_get_case_fold_codes_by_str(), a typical stack buffer overflow.

Why it matters now

EPSS 0.0308 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 1 fixed, 2 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 · 3

CPEVersionsRoleVendor
cpe:2.3:a:oniguruma_project:oniguruma:6.2.0:*:*:*:*:*:*:*6.2.0VulnerableOniguruma Project
cpe:2.3:a:php:php:*:*:*:*:*:oniguruma-mod:*:*up to 7.1.5VulnerablePHP
cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:oniguruma-mod:*:*up to 2.4.1Vulnerableruby
  • cpe:2.3:a:oniguruma_project:oniguruma:6.2.0:*:*:*:*:*:*:* Versions 6.2.0 Vulnerable ·Oniguruma Project
  • cpe:2.3:a:php:php:*:*:*:*:*:oniguruma-mod:*:* Versions up to 7.1.5 Vulnerable ·PHP
  • cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:oniguruma-mod:*:* Versions up to 2.4.1 Vulnerable ·ruby

Remediation

Red Hat 1 advisory

  • RHSA-2026:7545 Released 2026-04-10 · Red Hat rating Moderate
    Red Hat Hardened Images RPMs bug fix and enhancement update
    • Red Hat Hardened Images oniguruma-6.9.10-4.1.hum1@aarch64, oniguruma-6.9.10-4.1.hum1@src, oniguruma-6.9.10-4.1.hum1@x86_64 +2

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
CloudForms Management Engine 5Affected—
Red Hat Subscription Asset ManagerAffected—
Red Hat Hardened ImagesFixed RHSA-2026:7545
Not affected: 5 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat OpenShift Enterprise 2
  • Red Hat Software Collections

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-9225
  2. 2026-10-03 Alias added: GHSA-24pf-h82m-5vvv

References

Exploit 1

Patch 1

Sources

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