Base Score

HIGH7.8

CVE-2020-36401

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

VectorLOCAL

Published Bycve@mitre.org

Published DateJul 01, 2021, 03:15

Weakness Type (CWE):CWE-415

CVSS Metrics

Base Score

7.8

Vector String

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

Base Severity

HIGH

Version

3.1

Attack Vector (AV)

LOCAL

Attack Complexity (AC)

LOW

Privileges Required (PR)

NONE

User Interaction (UI)

REQUIRED

Scope (S)

UNCHANGED

Confidentiality (C)

HIGH

Integrity (I)

HIGH

Availability (A)

HIGH

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=23801
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/mruby/OSV-2020-744.yaml
https://github.com/mruby/mruby/commit/97319697c8f9f6ff27b32589947e1918e3015503

Base Score

HIGH7.8

Weakness Type (CWE):CWE-415

CVSS Metrics

Base Score

7.8

Vector String

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

Base Severity

HIGH

Version

3.1

Attack Vector (AV)

LOCAL

Attack Complexity (AC)

LOW

Privileges Required (PR)

NONE

User Interaction (UI)

REQUIRED

Scope (S)

UNCHANGED

Confidentiality (C)

HIGH

Integrity (I)

HIGH

Availability (A)

HIGH