CVE Vulnerability

CVE-2020-15866

mruby through 2.1.2-rc has a heap-based buffer overflow in the mrb_yield_with_class function in vm.c because of incorrect VM stack handling. It can be triggered via the stack_copy function.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/mruby/mruby/issues/5042 Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00006.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:mruby:mruby:2.1.2:rc:*:*:*:*:*:*
cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Information

Published : 2020-07-21 03:15

Updated : 2022-05-12 08:14

NVD link : CVE-2020-15866

Mitre link : CVE-2020-15866

Products Affected
No products.
CWE
CWE-787