// For flags

CVE-2017-9227

oniguruma: Out-of-bounds stack read in mbc_enc_len() during regular expression searching

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*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 stack out-of-bounds read occurs in mbc_enc_len() during regular expression searching. Invalid handling of reg->dmin in forward_search_range() could result in an invalid pointer dereference, as an out-of-bounds read from a stack buffer.

Se ha descubierto un problema en Oniguruma 6.2.0, como se empleaba en Oniguruma-mod en Ruby hasta la versión 2.4.1 y en mbstring en PHP hasta la versión 7.1.5. Una lectura de pila fuera de límites tiene lugar en mbc_enc_len() durante una búsqueda de expresión regular. El manejo incorrecto de reg->dmin en forward_search_range() podría dar lugar a una desreferencia de puntero no válida, como una lectura fuera de límites desde un búfer de pila.

It was discovered that the PHP opcache created keys for files it cached based on their filepath. A local attacker could possibly use this issue in a shared hosting environment to obtain sensitive information. This issue only affected Ubuntu 14.04 LTS. It was discovered that the PHP URL parser incorrectly handled certain URI components. A remote attacker could possibly use this issue to bypass hostname-specific URL checks. This issue only affected Ubuntu 14.04 LTS. Various other issues were also addressed.

*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
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • 2025-04-02 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
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