CVE-2020-36401

Public Exploit

Description

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

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.24%
Third-Party Advisory chromium.org Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503 third party advisory patch
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23801 issue tracking patch exploit third party advisory
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/mruby/OSV-2020-744.yaml third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-36401?
CVE-2020-36401 has been scored as a high severity vulnerability.
How to fix CVE-2020-36401?
To fix CVE-2020-36401, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-36401 being actively exploited in the wild?
It is possible that CVE-2020-36401 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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