CVE-2017-9228

oniguruma: Out-of-bounds heap write in bitset_set_range()

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se descubrió un problema en Oniguruma versión 6.2.0, tal como es usado en Oniguruma-mod en Ruby hasta la versión 2.4.1 y mbstring en PHP hasta la versión 7.1.5. Se produce una escritura fuera del límite de la pila en bitset_set_range() durante la compilación de expresiones regulares debido a una variable no inicializada de una transición de estado incorrecta. Una transición de estado incorrecta en parse_char_class() podría diseñar una ruta (path) de ejecución que deje una variable local crítica sin inicializar hasta que se utilice como un índice, resultando en una corrupción de memoria de escritura fuera de los límites.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-05-24 CVE Reserved
2017-05-24 CVE Published
2023-05-08 EPSS Updated
2024-08-05 CVE Updated
2024-08-05 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-122: Heap-based Buffer Overflow
CWE-787: Out-of-bounds Write

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC
https://github.com/kkos/oniguruma/issues/60	2024-08-05

URL	Date	SRC
https://github.com/kkos/oniguruma/commit/3b63d12038c8d8fc278e81c942fa9bec7c704c8b	2022-07-20

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:1296	2022-07-20
https://access.redhat.com/security/cve/CVE-2017-9228	2018-05-03
https://bugzilla.redhat.com/show_bug.cgi?id=1466740	2018-05-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Oniguruma Project Search vendor "Oniguruma Project"		Oniguruma Search vendor "Oniguruma Project" for product "Oniguruma"				6.2.0 Search vendor "Oniguruma Project" for product "Oniguruma" and version "6.2.0"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 5.6.0 < 5.6.31 Search vendor "Php" for product "Php" and version " >= 5.6.0 < 5.6.31"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 7.0.0 < 7.0.21 Search vendor "Php" for product "Php" and version " >= 7.0.0 < 7.0.21"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 7.1.0 < 7.1.7 Search vendor "Php" for product "Php" and version " >= 7.1.0 < 7.1.7"		-		Affected