CVE-2022-37189: Mei2volpiano Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-6xm7-3cc5-47f9
Share
CVSS 7.5
CWE-611
Published
Advisory Summary

CVE-2022-37189 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-611: Improper Restriction of XML External Entity Reference) affecting Mei2volpiano libraries in the PyPI ecosystem. The issue involves mei2volpiano is vulnerable to xml external entity (xxe), leading to a denial of service (dos). Remediation is available in the latest vendor maintenance releases.

CVE-2022-37189 at a Glance

CVE Identifier CVE-2022-37189
GHSA Identifier GHSA-6xm7-3cc5-47f9
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-611: Improper Restriction of XML External Entity Reference
Affected Product Mei2volpiano
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-2022-37189

To remediate this vulnerability, upgrade all affected Mei2volpiano dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

mei2volpiano fixed: Latest secure release 
pip install mei2volpiano>=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 mei2volpiano

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-37189, inspect your installed packages using pip:

pip show mei2volpiano

Analyze the terminal output to locate any version of Mei2volpiano 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 mei2volpiano command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-611: Improper Restriction of XML External Entity Reference, where the product processes an xml document that can contain xml entities with uris that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. In Mei2volpiano, 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

DDMAL MEI2Volpiano 0.8.2 is vulnerable to XML External Entity (XXE), leading to a Denial of Service. This occurs due to the usage of the unsafe 'xml.etree' library to parse untrusted XML input.

CVE-2022-37189 Affected Mei2volpiano Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
mei2volpiano
pypi/mei2volpiano
PyPI
≤ 0.8.2

References

NVD — CVE-2022-37189 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-37189
docs.python.org/3/library/xml.html WEB
https://docs.python.org/3/library/xml.html#xml-vulnerabilities
Mei2volpiano Source Repository REPOSITORY
https://github.com/DDMAL/MEI2Volpiano
Mei2volpiano Source Repository REPOSITORY
https://github.com/DDMAL/MEI2Volpiano/blob/987b70fff991235e682405f901388af0f414eaa8/mei2volpiano/mei2volpiano.py#L59
pyup.io/vulnerabilities/cve... WEB
https://pyup.io/vulnerabilities/CVE-2022-37189/50928

Frequently Asked Questions

What is CVE-2022-37189?
CVE-2022-37189 is a security vulnerability in Mei2volpiano involving MEI2Volpiano is vulnerable to XML External Entity (XXE), leading to a Denial of Service (DoS) under CWE-611: Improper Restriction of XML External Entity Reference.
Which Mei2volpiano versions are affected?
Affected versions include releases prior to current release patches across affected packages: mei2volpiano.
What version fixes CVE-2022-37189?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is mei2volpiano affected?
Yes, mei2volpiano 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-2022-37189?
CVE-2022-37189 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-2022-37189?
CVE-2022-37189 is classified under CWE-611: Improper Restriction of XML External Entity Reference (The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.).
How can I check PyPI dependencies for CVE-2022-37189?
Run the dependency tree command: 'pip show mei2volpiano'. 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-6xm7-3cc5-47f9",
  "modified" : "2022-09-16T17:19:30Z",
  "published" : "2022-09-08T00:00:30Z",
  "aliases" : [ "CVE-2022-37189" ],
  "summary" : "MEI2Volpiano is vulnerable to XML External Entity (XXE), leading to a Denial of Service (DoS)",
  "details" : "DDMAL MEI2Volpiano 0.8.2 is vulnerable to XML External Entity (XXE), leading to a Denial of Service. This occurs due to the usage of the unsafe 'xml.etree' library to parse untrusted XML input.",
  "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" : "mei2volpiano"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.8.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-37189"
  }, {
    "type" : "WEB",
    "url" : "https://docs.python.org/3/library/xml.html#xml-vulnerabilities"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/DDMAL/MEI2Volpiano"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/DDMAL/MEI2Volpiano/blob/987b70fff991235e682405f901388af0f414eaa8/mei2volpiano/mei2volpiano.py#L59"
  }, {
    "type" : "WEB",
    "url" : "https://pyup.io/vulnerabilities/CVE-2022-37189/50928"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-611" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-09-16T17:19:30Z",
    "nvd_published_at" : "2022-09-07T13:15:00Z"
  }
}