// For flags

CVE-2022-23526

Helm contains Denial of service through schema file

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Helm is a tool for managing Charts, pre-configured Kubernetes resources. Versions prior to 3.10.3 are subject to NULL Pointer Dereference in the_chartutil_ package that can cause a segmentation violation. The _chartutil_ package contains a parser that loads a JSON Schema validation file. For example, the Helm client when rendering a chart will validate its values with the schema file. The _chartutil_ package parses the schema file and loads it into structures Go can work with. Some schema files can cause array data structures to be created causing a memory violation. Applications that use the _chartutil_ package in the Helm SDK to parse a schema file can suffer a Denial of Service when that input causes a panic that cannot be recovered from. Helm is not a long running service so the panic will not affect future uses of the Helm client. This issue has been patched in 3.10.3. SDK users can validate schema files that are correctly formatted before passing them to the _chartutil_ functions.

Helm es una herramienta para gestionar Charts, recursos de Kubernetes preconfigurados. Las versiones anteriores a la 3.10.3 están sujetas a la desreferencia del puntero NULL en the_chartutil_ package, lo que puede provocar una infracción de segmentación. El paquete _chartutil_ contiene un analizador que carga un archivo de validación de JSON Schema. Por ejemplo, el cliente Helm, al representar un chart, validará sus valores con el archivo de schema. El paquete _chartutil_ analiza el archivo de schema y lo carga en estructuras con las que Go puede trabajar. Algunos archivos de schema pueden provocar la creación de estructuras de datos de matriz, lo que provoca una violación de la memoria. Las aplicaciones que utilizan el paquete _chartutil_ en Helm SDK para analizar un archivo de schema pueden sufrir una Denegación de Servicio (DoS) cuando esa entrada provoca un pánico del que no se puede recuperar. Helm no es un servicio de larga duración, por lo que el pánico no afectará los usos futuros del cliente Helm. Este problema se solucionó en 3.10.3. Los usuarios del SDK pueden validar archivos de schema que estén formateados correctamente antes de pasarlos a las funciones _chartutil_.

A flaw was found in Helm, a tool for managing Charts, a pre-configured Kubernetes resources. Versions prior to 3.10.3 are subject to NULL Pointer Dereference in the_chartutil_ package that could cause a segmentation violation. The _chartutil_ package contains a parser that loads a JSON Schema validation files into structures Go can work with. Some schema files can cause array data structures to be created, causing a memory violation. Applications that use the _chartutil_ package in the Helm SDK to parse a schema files may result in a denial of service.

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.13.0. Issues addressed include bypass, denial of service, information leakage, out of bounds read, and remote SQL injection vulnerabilities.

*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
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-01-19 CVE Reserved
  • 2022-12-15 CVE Published
  • 2024-07-07 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Helm
Search vendor "Helm"
Helm
Search vendor "Helm" for product "Helm"
>= 3.0.0 < 3.10.3
Search vendor "Helm" for product "Helm" and version " >= 3.0.0 < 3.10.3"
-
Affected