CVE-2018-12248

CVSS V2 Medium 5 CVSS V3 High 7.5

Description

An issue was discovered in mruby 1.4.1. There is a heap-based buffer over-read associated with OP_ENTER because mrbgems/mruby-fiber/src/fiber.c does not extend the stack in cases of many arguments to fiber.

Overview

CVE ID
CVE-2018-12248

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2018-06-12T14:29:00

Last Modified Date
2019-10-03T00:03:26

Weakness Enumerations

CWE	URL
CWE-125	http://cwe.mitre.org/data/definitions/125.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:mruby:mruby:1.4.1:::::::*	1	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
PARTIAL

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.0

Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://github.com/mruby/mruby/issues/4038	Issue Tracking Third Party Advisory
https://github.com/mruby/mruby/commit/778500563a9f7ceba996937dc886bd8cde29b42b	Patch Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2018-12248
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12248

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 17:32:21				Added to TrackCVE
2022-12-03 07:57:07	2018-06-12T14:29Z	2018-06-12T14:29:00	CVE Published Date	updated
2022-12-03 07:57:07		2019-10-03T00:03:26	CVE Modified Date	updated
2022-12-03 07:57:07		Analyzed	Vulnerability Status	updated