Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2020-36401

Double Free

Published: Jul 01, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-36401
CWEhttps://cwe.mitre.org/data/definitions/415.html

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

Weakness

The product calls free() twice on the same memory address.

Affected Software

NameVendorStart VersionEnd Version
MrubyMruby2.1.2 (including)2.1.2 (including)
MrubyUbuntubionic*
MrubyUbuntuesm-apps/jammy*
MrubyUbuntufocal*
MrubyUbuntugroovy*
MrubyUbuntuhirsute*
MrubyUbuntuimpish*
MrubyUbuntujammy*
MrubyUbuntukinetic*
MrubyUbuntutrusty*
MrubyUbuntuupstream*
MrubyUbuntuxenial*

Potential Mitigations

References

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