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CVE-2022-23526— Helm contains Denial of service through schema file

Quick assessment

Affected
helm helm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Helm是一款Kubernetes包管理器。 Helm 3.10.3之前版本存在代码问题漏洞，该漏洞源于受 the_chartutil_ 包中的 NULL Pointer Dereference 约束，这可能会导致分段违规。

CVSS 5.3 · Medium EPSS 0.86% · P57

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2022-23526

Vulnerability Information
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Vulnerability Title
Helm contains Denial of service through schema file
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Helm 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Helm是一款Kubernetes包管理器。 Helm 3.10.3之前版本存在代码问题漏洞，该漏洞源于受 the_chartutil_ 包中的 NULL Pointer Dereference 约束，这可能会导致分段违规。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
helm helm < v3.10.3 -

II. Public POCs for CVE-2022-23526

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III. Intelligence Information for CVE-2022-23526

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Patches & Fixes for CVE-2022-23526 (1)

Vendor Advisories for CVE-2022-23526 (1)

Same Patch Batch · helm · 2022-12-15 · 3 CVEs total

CVE-2022-23524 5.3 MEDIUM Helm vulnerable to Denial of service through string value parsing
CVE-2022-23525 5.3 MEDIUM Helm vulnerable to Denial of service via NULL Pointer Dereference

IV. Related Vulnerabilities

Same product: helm
Same vendor: helm
Same weakness: CWE-476

V. Comments for CVE-2022-23526

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