CVE-2022-39974: Pywasm3 WASM3 Improper Input Validation Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-crf8-h2wq-2h9x
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CVSS 7.5
CWE-20 CWE-119
Published
Advisory Summary

CVE-2022-39974 is a HIGH (CVSS 7.5) wasm3 improper input validation vulnerability vulnerability (CWE-20: Improper Input Validation) affecting Pywasm3 libraries in the PyPI ecosystem. The issue involves wasm3 improper input validation vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2022-39974 at a Glance

CVE Identifier CVE-2022-39974
GHSA Identifier GHSA-crf8-h2wq-2h9x
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-20: Improper Input Validation
Affected Product Pywasm3
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2022-39974

To remediate this vulnerability, upgrade all affected Pywasm3 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

pywasm3 fixed: Latest secure release 
pip install pywasm3>=Latest secure release
wasm3 fixed: Latest secure release 
Upgrade wasm3 to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show pywasm3

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-39974, inspect your installed packages using pip:

pip show pywasm3

Analyze the terminal output to locate any version of Pywasm3 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show pywasm3 command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Pywasm3, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

WASM3 v0.5.0 was discovered to contain a segmentation fault via the component `op_Select_i32_srs` in `wasm3/source/m3_exec.h`.

CVE-2022-39974 Affected Pywasm3 Versions

2 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
pywasm3
pypi/pywasm3
PyPI
≤ 0.5.0
wasm3
 crates.io
≤ 0.5.0

References

NVD — CVE-2022-39974 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-39974
Pywasm3 Source Repository REPOSITORY
https://github.com/wasm3/wasm3/issues/344
Pywasm3 Source Repository REPOSITORY
https://github.com/wasm3/wasm3/issues/379
Pywasm3 Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/pywasm3/PYSEC-2022-43058.yaml
Pywasm3 Source Repository REPOSITORY
https://github.com/wasm3/wasm3

Frequently Asked Questions

What is CVE-2022-39974?
CVE-2022-39974 is a security vulnerability in Pywasm3 involving WASM3 Improper Input Validation vulnerability under CWE-20: Improper Input Validation.
Which Pywasm3 versions are affected?
Affected versions include releases prior to current release patches across affected packages: pywasm3, wasm3.
What version fixes CVE-2022-39974?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is pywasm3 affected?
Yes, pywasm3 is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
Is wasm3 affected?
Yes, wasm3 is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2022-39974?
CVE-2022-39974 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2022-39974?
CVE-2022-39974 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check PyPI dependencies for CVE-2022-39974?
Run the dependency tree command: 'pip show pywasm3'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-crf8-h2wq-2h9x",
  "modified" : "2024-10-15T16:44:05Z",
  "published" : "2022-09-21T00:00:38Z",
  "aliases" : [ "CVE-2022-39974" ],
  "summary" : "WASM3 Improper Input Validation vulnerability",
  "details" : "WASM3 v0.5.0 was discovered to contain a segmentation fault via the component `op_Select_i32_srs` in `wasm3/source/m3_exec.h`.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "pywasm3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.5.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "wasm3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-39974"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/wasm3/wasm3/issues/344"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/wasm3/wasm3/issues/379"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/pywasm3/PYSEC-2022-43058.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/wasm3/wasm3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-119", "CWE-20" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-09-21T21:10:20Z",
    "nvd_published_at" : "2022-09-20T18:15:00Z"
  }
}