HOMEVULNERABILITIESCVE-2017-9229
HIGH

CVE-2017-9229

CWE-476Published: May 24, 2017· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official 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 SIGSEGV occurs in left_adjust_char_head() during regular expression compilation. Invalid handling of reg->dmax in forward_search_range() could result in an invalid pointer dereference, normally as an immediate denial-of-service condition.

NVD Source

Technical Analysis

CVE-2017-9229 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

oniguruma_project1 product(s)
oniguruma
PHP1 product(s)
php
ruby-lang1 product(s)
ruby
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/kkos/oniguruma/commit/b690371bbf97794b4a1d3f295d4fb9a8b05d402d
PATCHhttps://github.com/kkos/oniguruma/commit/b690371bbf97794b4a1d3f295d4fb9a8b05d402d
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:1296
ADVISORYhttps://github.com/kkos/oniguruma/issues/59
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:1296
ADVISORYhttps://github.com/kkos/oniguruma/issues/59

All References (6)

→
https://access.redhat.com/errata/RHSA-2018:1296Third Party Advisory
→
https://github.com/kkos/oniguruma/commit/b690371bbf97794b4a1d3f295d4fb9a8b05d402dPatch · Third Party Advisory
→
https://github.com/kkos/oniguruma/issues/59Exploit · Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2018:1296Third Party Advisory
→
https://github.com/kkos/oniguruma/commit/b690371bbf97794b4a1d3f295d4fb9a8b05d402dPatch · Third Party Advisory
→
https://github.com/kkos/oniguruma/issues/59Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2017-9229
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-476
CISA KEVNo
Affected3 vendor(s)
PublishedMay 24, 2017

Related CVEs (CWE-476)

CVE-2022-36648
10.0
CVE-2010-2495
10.0
CVE-2022-26094
9.8
CVE-2015-9073
9.8
CVE-2022-26093
9.8
CVE-2015-9043
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-9229 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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