Vulnerabilities in pkg:pypi/freewvs

PACKAGE
Advisory Identifier: GHSA-9cfv-9463-8gqv
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Advisory Summary

CVE-2020-15100 is a LOW (CVSS 2.8) denial of service vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) affecting Freewvs libraries in the PyPI ecosystem. The issue involves freewvs vulnerable to denial of service through large files. Remediation is available by upgrading affected packages to version 0.1.1.

2 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:pypi/freewvs

2 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:pypi/freewvs. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-9cfv-9463-8gqv CVE-2020-15100 LOW freewvs vulnerable to denial of service through large files
GHSA-7pmh-vrww-25xx CVE-2020-15101 LOW freewvs's nested directory structure can interrupt scan

CVE-2020-15100 at a Glance

CVE Identifier CVE-2020-15100
GHSA Identifier GHSA-9cfv-9463-8gqv
Severity LOW
CVSS v3.1 Base Score 2.8
CWE Classification CWE-770: Allocation of Resources Without Limits or Throttling
Affected Product Freewvs
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 2.8

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

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

How to Fix CVE-2020-15100

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

freewvs fixed: 0.1.1 
pip install freewvs>=0.1.1
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 freewvs

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2020-15100, inspect your installed packages using pip:

pip show freewvs

Analyze the terminal output to locate any version of Freewvs in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.1.1), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-770: Allocation of Resources Without Limits or Throttling, where the product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated. In Freewvs, 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

### Impact A user could create a large file that freewvs will try to read, which will terminate a scan process. ### Patches This has been patched by limiting the data freewvs reads: https://github.com/schokokeksorg/freewvs/commit/18bbf2043e53f69e0119d24f8ae4edb274afb9b2

CVE-2020-15100 Affected Freewvs Versions

1 component(s)
Fixed Versions:
0.1.1
Product / Package Ecosystem Affected Versions Fixed Version
freewvs
pypi/freewvs
PyPI
< 0.1.1
0.1.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/schokokeksorg/freewvs/security/advisories/GHSA-9cfv-9463-8gqv
NVD — CVE-2020-15100 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-15100
Security Fix Commit FIX COMMIT
https://github.com/schokokeksorg/freewvs/commit/18bbf2043e53f69e0119d24f8ae4edb274afb9b2
Freewvs Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/freewvs/PYSEC-2020-232.yaml
Freewvs Source Repository REPOSITORY
https://github.com/schokokeksorg/freewvs

Frequently Asked Questions

What is CVE-2020-15100?
CVE-2020-15100 is a security vulnerability in Freewvs involving freewvs vulnerable to denial of service through large files under CWE-770: Allocation of Resources Without Limits or Throttling.
Which Freewvs versions are affected?
Affected versions include releases prior to 0.1.1 across affected packages: freewvs.
What version fixes CVE-2020-15100?
Upgrading to 0.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is freewvs affected?
Yes, freewvs is affected in releases prior to 0.1.1. Upgrade your dependency to 0.1.1 or later.
What is the CVSS score of CVE-2020-15100?
CVE-2020-15100 has a CVSS v3.1 base score of 2.8 (LOW) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2020-15100?
CVE-2020-15100 is classified under CWE-770: Allocation of Resources Without Limits or Throttling (The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.).
How can I check PyPI dependencies for CVE-2020-15100?
Run the dependency tree command: 'pip show freewvs'. 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-9cfv-9463-8gqv",
  "modified" : "2024-08-30T18:43:58Z",
  "published" : "2024-08-30T18:43:57Z",
  "aliases" : [ "CVE-2020-15100" ],
  "summary" : "freewvs vulnerable to denial of service through large files",
  "details" : "### Impact\nA user could create a large file that freewvs will try to read, which will terminate a scan process.\n\n### Patches\nThis has been patched by limiting the data freewvs reads:\nhttps://github.com/schokokeksorg/freewvs/commit/18bbf2043e53f69e0119d24f8ae4edb274afb9b2",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "freewvs"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/schokokeksorg/freewvs/security/advisories/GHSA-9cfv-9463-8gqv"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-15100"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/schokokeksorg/freewvs/commit/18bbf2043e53f69e0119d24f8ae4edb274afb9b2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/freewvs/PYSEC-2020-232.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/schokokeksorg/freewvs"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-770" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-08-30T18:43:57Z",
    "nvd_published_at" : "2020-07-14T20:15:00Z"
  }
}