// For flags

CVE-2019-16163

oniguruma: Stack exhaustion in regcomp.c because of recursion in regparse.c

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Oniguruma before 6.9.3 allows Stack Exhaustion in regcomp.c because of recursion in regparse.c.

Oniguruma versiones anteriores a 6.9.3, permite un Agotamiento de la Pila en el archivo regcomp.c debido a la recursión en el archivo regparse.c.

An update that fixes 6 vulnerabilities is now available. This update for oniguruma fixes the following issues. Fixed an out of bounds access during regular expression matching. Fixed an out of bounds access when compiling a crafted regular expression. Fixed an out of bounds access when performing a string search. Fixed an uncontrolled recursion issue when compiling a crafted regular expression, which could lead to denial of service. Fixed an off-by-one buffer overflow. Fixed a potential use-after-free when handling multiple different encodings.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-09-09 CVE Reserved
  • 2019-09-09 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-121: Stack-based Buffer Overflow
  • CWE-674: Uncontrolled Recursion
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"
 < 6.9.3
Search vendor "Oniguruma Project" for product "Oniguruma" and version " < 6.9.3"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 29
Search vendor "Fedoraproject" for product "Fedora" and version "29"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 30
Search vendor "Fedoraproject" for product "Fedora" and version "30"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected
Canonical
Search vendor "Canonical"
 Ubuntu Linux
Search vendor "Canonical" for product "Ubuntu Linux"
 14.04
Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"
esm
Affected