CVE-2017-9226
Last modified
CVE-2017-9226 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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 heap out-of-bounds write or read occurs in next_state_val() during regular expression compilation. EPSS estimates a 7.51% chance of exploitation in the next 30 days.
Description
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 heap out-of-bounds write or read occurs in next_state_val() during regular expression compilation. Octal numbers larger than 0xff are not handled correctly in fetch_token() and fetch_token_in_cc(). A malformed regular expression containing an octal number in the form of '\700' would produce an invalid code point value larger than 0xff in next_state_val(), resulting in an out-of-bounds write memory corruption.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Oniguruma Project | Oniguruma | 6.2.0 |
| Php | Php | < 5.6.31 |
| Php | Php | >= 7.0.0, < 7.0.21 |
| Php | Php | >= 7.1.0, < 7.1.7 |
References
- http://www.securityfocus.com/bid/101244Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1296Third Party Advisory
- https://github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353aPatch, Third Party Advisory
- https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6Patch, Third Party Advisory
- https://github.com/kkos/oniguruma/issues/55Exploit, Issue Tracking, Third Party Advisory
- http://www.securityfocus.com/bid/101244Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1296Third Party Advisory
- https://github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353aPatch, Third Party Advisory
- https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6Patch, Third Party Advisory
- https://github.com/kkos/oniguruma/issues/55Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-9226?
How severe is CVE-2017-9226?
How do I fix CVE-2017-9226?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2017
- CVE-2017-9220The mp4ff_read_stco function in common/mp4ff/mp4atom.c in Fr…
- CVE-2017-9221The mp4ff_read_mdhd function in common/mp4ff/mp4atom.c in Fr…
- CVE-2017-9222The mp4ff_parse_tag function in common/mp4ff/mp4meta.c in Fr…
- CVE-2017-9223The mp4ff_read_stts function in common/mp4ff/mp4atom.c in Fr…
- CVE-2017-9224An issue was discovered in Oniguruma 6.2.0, as used in Onigu…9.8
- CVE-2017-9225An issue was discovered in Oniguruma 6.2.0, as used in Onigu…
- CVE-2017-9227An issue was discovered in Oniguruma 6.2.0, as used in Onigu…9.8
- CVE-2017-9228An issue was discovered in Oniguruma 6.2.0, as used in Onigu…9.8
- CVE-2017-9229An issue was discovered in Oniguruma 6.2.0, as used in Onigu…7.5
- CVE-2017-9230The Bitcoin Proof-of-Work algorithm does not consider a cert…7.5
- CVE-2017-9231XML external entity (XXE) vulnerability in Citrix XenMobile …
- CVE-2017-9232Juju before 1.25.12, 2.0.x before 2.0.4, and 2.1.x before 2.…
Are you affected by CVE-2017-9226?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST