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CVE-2017-9228

Published: May 24, 2017Updated: May 13, 2026 Sources: CVE List NVD BDUCWE-787
9.8CRITICAL
NVD MITRE
EPSS Score
6.3%
Top 7.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 occurs in bitset_set_range() during regular expression compilation due to an uninitialized variable from an incorrect state transition. An incorrect state transition in parse_char_class() could create an execution path that leaves a critical local variable uninitialized until it's used as an index, resulting in an out-of-bounds write memory corruption.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-787

Affected Products

PHPPHP Group
LibraryLibrary
OSS Libraries
OnigurumaK. Kosako
Library
OSS Libraries / generic-library
RubyRuby Team
LibraryLibrary
OSS Libraries / rubygems
n/an/a
onigurumaoniguruma project
Library
OSS Libraries / generic-library
php grouposs-projectOSS Librariesaka php, pear
k. kosakooss-projectOSS Librariesaka oniguruma project, oniguruma
ruby teamoss-projectOSS Librariesaka ruby team, ruby-lang
oniguruma projectoss-projectOSS Librariesaka oniguruma regex library
and 1 more affected products View all →

Exploitability

Official Patch Available
No detection template yetWe can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/kkos/oniguruma/commit/3b63d12038c8d8fc278e81c942fa9bec7c704c8b
github.com
https://github.com/kkos/oniguruma/issues/60
github.com
https://github.com/kkos/oniguruma/commit/3b63d12038c8d8fc278e81c942fa9bec7c704c8b
github.com
and 1 more references View all →

Timeline

Published
May 24, 2017
Last Updated
May 13, 2026

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