// For flags

CVE-2020-5211

NetHack AUTOCOMPLETE configuration file option is subject to a buffer overflow

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In NetHack before 3.6.5, an invalid extended command in value for the AUTOCOMPLETE configuration file option can cause a buffer overflow resulting in a crash or remote code execution/privilege escalation. This vulnerability affects systems that have NetHack installed suid/sgid and shared systems that allow users to upload their own configuration files. Users should upgrade to NetHack 3.6.5.

En NetHack versiones anteriores a 3.6.5, un comando extendido no válido en valor para la opción de archivo de configuración AUTOCOMPLETE puede causar un desbordamiento del búfer resultando en un bloqueo o escalada de privilegios o una ejecución de código remota. Esta vulnerabilidad afecta a los sistemas que tienen instalado suid/sgid de NetHack y sistemas compartidos que permiten a usuarios cargar sus propios archivos de configuración. Los usuarios deberán actualizar a NetHack versión 3.6.5.

*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
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
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
  • 2020-01-02 CVE Reserved
  • 2020-01-28 CVE Published
  • 2024-03-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CAPEC
References (1)
URL Tag Source
https://github.com/NetHack/NetHack/security/advisories/GHSA-r788-4jf4-r9f7 Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Nethack
Search vendor "Nethack"
 Nethack
Search vendor "Nethack" for product "Nethack"
 < 3.6.5
Search vendor "Nethack" for product "Nethack" and version " < 3.6.5"
-
Affected