• Tenable
  • CVEs
  • Settings
    Links
    Tenable Cloud Tenable Community & Support Tenable University
    Severity
    Theme
  • Tenable
  • Plugins
  • Overview
  • Plugins Pipeline
  • Newest
  • Updated
  • Search
  • Nessus Families
  • WAS Families
  • NNM Families
  • LCE Families
  • Tenable OT Security Families
  • About Plugin Families
  • Release Notes
  • Audits
  • Overview
  • Newest
  • Updated
  • Search Audit Files
  • Search Items
  • References
  • Authorities
  • Documentation
  • Download All Audit Files
  • Indicators
  • Overview
  • Search
  • Indicators of Attack
  • Indicators of Exposure
  • Release Notes
  • CVEs
  • Overview
  • Newest
  • Updated
  • Search
  • Attack Path Techniques
  • Overview
  • Search
    • Links
    • Tenable Cloud
    • Tenable Community & Support
    • Tenable University
    • Settings
    • Severity
    • Theme
Detections
  • Plugins
  • Overview
  • Plugins Pipeline
  • Release Notes
  • Newest
  • Updated
  • Search
  • Nessus Families
  • WAS Families
  • NNM Families
  • LCE Families
  • Tenable OT Security Families
  • About Plugin Families
  • Audits
  • Overview
  • Newest
  • Updated
  • Search Audit Files
  • Search Items
  • References
  • Authorities
  • Documentation
  • Download All Audit Files
  • Indicators
  • Overview
  • Search
  • Indicators of Attack
  • Indicators of Exposure
  • Release Notes
Analytics
  • CVEs
  • Overview
  • Newest
  • Updated
  • Search
  • Attack Path Techniques
  • Overview
  • Search
  1. CVEs
  2. CVE-2020-36401
  1. CVEs

CVE-2020-36401

high
  • Information
  • CPEs
  • Plugins

Description

mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).

References

  • Advisories
  • More

https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/mruby/OSV-2020-744.yaml

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23801

Details

Source: Mitre, NVD

Published: 2021-07-01

Updated: 2021-07-06

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00242

  • Tenable.com
  • Community & Support
  • Documentation
  • Education
  • © 2025 Tenable®, Inc. All Rights Reserved
  • Privacy Policy
  • Legal
  • 508 Compliance