// For flags

CVE-2023-49298

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

OpenZFS through 2.1.13 and 2.2.x through 2.2.1, in certain scenarios involving applications that try to rely on efficient copying of file data, can replace file contents with zero-valued bytes and thus potentially disable security mechanisms. NOTE: this issue is not always security related, but can be security related in realistic situations. A possible example is cp, from a recent GNU Core Utilities (coreutils) version, when attempting to preserve a rule set for denying unauthorized access. (One might use cp when configuring access control, such as with the /etc/hosts.deny file specified in the IBM Support reference.) NOTE: this issue occurs less often in version 2.2.1, and in versions before 2.1.4, because of the default configuration in those versions.

OpenZFS hasta 2.1.13 y 2.2.x hasta 2.2.1, en ciertos escenarios que involucran aplicaciones que intentan confiar en la copia eficiente de datos de archivos, puede reemplazar el contenido del archivo con bytes de valor cero y, por lo tanto, potencialmente deshabilitar los mecanismos de seguridad. NOTA: este problema no siempre está relacionado con la seguridad, pero puede estar relacionado con la seguridad en situaciones realistas. Un posible ejemplo es cp, de una versión reciente de GNU Core Utilities (coreutils), cuando se intenta preservar un conjunto de reglas para denegar el acceso no autorizado. (Se puede usar cp al configurar el control de acceso, como con el archivo /etc/hosts.deny especificado en la referencia de soporte de IBM). NOTA: este problema ocurre con menos frecuencia en la versión 2.2.1 y en versiones anteriores a la 2.1.4. debido a la configuración predeterminada en esas versiones.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-11-24 CVE Reserved
  • 2023-11-24 CVE Published
  • 2024-10-10 CVE Updated
  • 2024-10-10 First Exploit
  • 2024-10-24 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-639: Authorization Bypass Through User-Controlled Key
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Openzfs
Search vendor "Openzfs"
Openzfs
Search vendor "Openzfs" for product "Openzfs"
<= 2.1.13
Search vendor "Openzfs" for product "Openzfs" and version " <= 2.1.13"
-
Affected
in Freebsd
Search vendor "Freebsd"
Freebsd
Search vendor "Freebsd" for product "Freebsd"
14.0
Search vendor "Freebsd" for product "Freebsd" and version "14.0"
-
Safe
Openzfs
Search vendor "Openzfs"
Openzfs
Search vendor "Openzfs" for product "Openzfs"
2.2.0
Search vendor "Openzfs" for product "Openzfs" and version "2.2.0"
-
Affected
in Freebsd
Search vendor "Freebsd"
Freebsd
Search vendor "Freebsd" for product "Freebsd"
14.0
Search vendor "Freebsd" for product "Freebsd" and version "14.0"
-
Safe