CVE-2020-36401 — HIGH (7.8)

Vulnerability Description

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

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mruby	Mruby	2.1.2
Linux	Linux Kernel	-

Related Weaknesses (CWE)

CWE-415

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23801ExploitIssue TrackingPatch
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/mruby/OSV-2020-744.yamlThird Party Advisory
https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503PatchThird Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23801ExploitIssue TrackingPatch
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/mruby/OSV-2020-744.yamlThird Party Advisory
https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503PatchThird Party Advisory

FAQ

What is CVE-2020-36401?

CVE-2020-36401 is a vulnerability with a CVSS score of 7.8 (HIGH). mruby 2.1.2 has a double free in mrb_default_allocf (called from mrb_free and obj_free).

How severe is CVE-2020-36401?

CVE-2020-36401 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-36401?

Check the references section above for vendor advisories and patch information. Affected products include: Mruby Mruby, Linux Linux Kernel.